General information

Boric acid: instruction and application


Boric acid is a universal antiseptic and disinfectant, which in the past was prescribed not only for adults but also for children with various diseases. And although today, due to the advent of new drugs and a number of side effects, the use of the drug is limited, it is widely used in cosmetology and is part of multicomponent antiseptics.

In this article, we will consider when doctors prescribe Boric Acid, including instructions for use, analogues and prices for this drug in pharmacies. If you have already taken Boric acid, leave feedback in the comments.

Composition and release form

Antiseptic agent, coagulates proteins (including enzymes) of the microbial cell, violates the permeability of the cell wall.

  • Powder in packs of 10 g and 25 g, cans and containers of 40 g.
  • 5% and 10% boric ointment (Unguentum Acidi borici), in packs of 25 g and 30 g. Composition of boric ointment: boric acid - 1 part, vaseline - 9 parts or 19 parts (1:10 or 1:20 ointment) .
  • Boric alcohol - 0.5%, 1%, 2%, 3% and 5% solutions of boric acid in 70% ethyl alcohol, in 15 ml bottles and in vials and dropper bottles in 25 ml. The composition of boric alcohol: boric acid - 0.5 g (1 g, 2 g or 3 g), 70% ethyl alcohol - up to 100 ml.

Aqueous solutions of boric acid is prepared from the powder immediately before use.

pharmachologic effect

Boric acid has an antiseptic effect on the skin and mucous membranes. Topical application of boric acid in the form of an ointment well helps with lice (pediculosis). It is also possible to use a solution of boric acid in the ear with otitis. It has a high degree of penetration through the skin and mucous membranes, especially in young children.

It has the ability to accumulate in organs and tissues, is slowly eliminated from the body. Quite widespread use of the drug was observed in the past time, both in adults and in children. Now, due to identified side effects, boric acid has limited use.

Indications for use

Indications for the use of medicinal products may be different, since boric acid is an antiseptic, and it also creates an anti-pediculosis and insecticidal effect. Let's see what boric acid is used for and what diseases it copes with:

  • dermatitis,
  • conjunctivitis,
  • diaper rash on the skin
  • eczema,
  • otitis in different forms,
  • pyoderma,
  • colpit,
  • pediculosis.

The remedy quickly relieves inflammation, redness and other unpleasant symptoms.

Instructions for use

Regardless of the dosage form, the drug Boric acid is used only externally. It is applied to the area of ​​localization of the infectious inflammatory process. There are such methods of using different dosage forms of the drug:

  1. Alcohol solutions of 0.5%, 1%, 2% and 3% are used in the form of drops in the ear for acute and chronic otitis (turunds / small narrow gauze tampons / moistened with a solution, injected into the ear canal), as well as for the treatment of affected areas skin with pyoderma (purulent inflammation of the skin), eczema, diaper rash. After operations on the middle ear, insufflation (blowing with a blower blower) of boric acid powder is sometimes used.
  2. Assign in the form of a 2% aqueous solution for washing the conjunctival sac (the cavity between the back surface of the eyelids and the front surface of the eyeball) with conjunctivitis (inflammation of the outer shell of the eye), 3% solution is used for lotions with moist eczema, dermatitis (skin inflammation).
  3. When pediculosis is applied once 10-25 g of 5% ointment on the hairy areas of the head, after 20-30 minutes, rinse with warm water, carefully comb with a comb, with dry skin and cracks, apply the ointment to the skin as needed.
  4. A solution of 10% in glycerol is used to lubricate the affected skin with diaper rash, as well as colpitis (inflammation of the vagina).

Ointment - applied to the mucous membranes with a uniform thin layer, with conjunctivitis a small amount of ointment is laid under the conjunctival sac. The ointment is applied 2 times a day.

Found a sworn enemy MUSHROOM nail! Nails will be cleaned in 3 days! Take it.

How to quickly normalize blood pressure after 40 years? The recipe is simple, write it down.

Tired of hemorrhoids? There is an exit! It can be cured at home in a few days, you need.

About the presence of worms says a scent from the mouth! Once a day, drink water with a drop ..


Contraindications to the use of the drug are:

  1. Increased patient sensitivity to boric acid,
  2. Perforation of the eardrum,
  3. Renal dysfunction,
  4. Chronic renal failure
  5. Pregnancy and lactation,
  6. Childhood.

Side effects

When using boric acid, especially in case of overdose and prolonged use and with impaired renal function, acute and chronic toxic reactions may occur: nausea, vomiting, diarrhea, skin rash, desquamation of the epithelium, headache, confusion, convulsions, oliguria, in rare cases - shock condition.

special instructions

Boric acid preparations should be avoided in the eyes (with the exception of dosage forms intended for use in ophthalmology). If this does happen, wipe the affected area with gauze or a cotton swab and rinse well with warm running water.

  1. It is contraindicated to apply funds on large body surfaces.
  2. In acute inflammatory dermatological diseases, the use of boric acid in areas covered with hair is prohibited.

Each dosage form of the drug must be applied strictly in accordance with the indications.

Analogues of drugs of boric acid are Levomycetin, Linin, Sodium tetraborate, Novozindol, Fukaseptol, Fukortsin.

The average price of boric acid in pharmacies (Moscow) is 15 rubles.

Release form and composition

Available in the form of the drug:

  • Packaged in packages of 10 and 25 grams of powder for external use,
  • Alcohol solution in vials of 10 ml with a concentration of the active substance 0.5, 1, 2, 3 or 5% (the solution includes, respectively, 0.5, 1, 2, 3 or 5 grams of boric acid and 70% ethyl alcohol),
  • 10% solution in glycerin (Boroglycerin), poured in 25 g vials of dark glass,
  • 5% boric ointment (boric vaseline), for the preparation of which combine 5 parts of boric acid and 95 parts of vaseline,
  • Born-zinc liniment, which consists of 1 g of boric acid, zinc oxide and sunflower oil. The product is available in glass jars with a volume of 25 or 50 grams.

Substance is also part of:

  • Born-zinc-naphthalan paste,
  • Teymurov pastes,
  • Antiseptic and analgesic solution containing ethyl alcohol, novocaine and boric acid,
  • Solidol ointment.

Aqueous solutions of boric acid is prepared from the powder immediately before use.

Boric acid has a pronounced antiseptic activity. When applied topically in the form of liniment, paste or ointment, it has anti-pediculous, keratolytic, disinfecting, drying and deodorizing effects.

Due to these properties, boric acid preparations in the form of pastes and ointments are used for:

  • Pediculosis,
  • Neuralgia and myositis (boric-zinc-naphthalan paste),
  • Perspiration (pasta Teymurova).

Solid oil ointment is used for psoriasis.

The use of boric acid in the form of aqueous solutions is indicated for conjunctivitis (2% solution), inflammatory lesions of the skin (dermatitis) and weeping eczema (3% solution).

Alcohol solutions are used for diaper rash, as well as acute and chronic inflammatory diseases of the ears, purulent lesions of the skin caused by the introduction of pyogenic cocci into it.

A 10% solution of boric acid in glycerin is prescribed for colpitis, pyoderma and diaper rash.

Patients who have undergone surgery on the middle ear, in some cases, showed the use of Boric acid by the method of insufflation (blowing) of powder into the ear cavity.

Side effects

According to the instructions for boric acid, this substance penetrates well through the skin and mucous membranes, is slowly eliminated from the body and has the ability to accumulate in various organs and tissues. For this reason, prolonged treatment with its use can cause:

  • Development of acute and chronic toxic reactions,
  • The occurrence of nausea,
  • Vomiting
  • Diarrhea,
  • Skin rash
  • Decreased body temperature
  • Confusion of consciousness
  • Increased seizure activity,
  • Oliguria (reducing the amount of urine excreted by the kidneys),
  • Headaches
  • Desquamation (scaly flaking) epithelium,
  • Shock state.

Chronic intoxication may be accompanied by hair loss, anemia, menstrual disorders, stomatitis, local tissue swelling.

Boric acid price

Boric powder is sold in a pharmacy, as well as other forms of release of the specified medicine. An adult and a child can take it, but only according to the instructions and recommendations of the attending physician.

Prices are minimal, no recipe required. Therefore, this drug replenishes almost every family first aid kit.

The prices for this medical product are as follows, but depend on the form of production of pharmacological products:

After a few days of regular use of the solution, it will remove the inflammation, dry the skin, reduce its fat content and, thanks to all this, will very quickly eliminate the unpleasant acne problem. After treatment, you can sometimes use boric acid for prophylactic washing.

Nail and Foot Fungus Treatment

Strictly speaking, boric acid is not antifungal. But thanks to its properties, it very effective fights this disease. The easiest treatment method is baths.

For their preparation, you need to dilute 2-3 teaspoons of boric acid powder in tolerably hot water. The amount of solution should be such that it is enough to cover all the affected areas on the feet.

In this bath you should hold your feet for 20 minutes and then wipe them with a clean towel. You need to repeat the procedure every three days.

Active substance

For a better understanding of the qualities of this drug, it is necessary to examine this drug in detail and analyze what it is.

  1. It is used as a disinfectant and antiseptic substance that is neutral for the body tissues.
  2. It is allowed to use as a powder for various diseases of the skin.
  3. Outwardly as alcoholic and aqueous solutions and ointments.

Type and dosage for sale

Boric acid is sold as:

  1. Alcohol three percent solution (in vials of 40 ml and vials of 10 ml, 15 ml and 25 ml).
  2. Of powder for use externally (in jars of 25 grams).

To prepare the solution, take 3 grams of powder and dissolve them in 4-6 tablespoons of boiling water. The active substance in these preparations is boric acid. The solution in the form of an additional component has 70% alcohol.

Action on the human body

When ingested, the drug is easily absorbed from the intestine into the blood. And also repeated action is obtained from the skin and mucous membranes. In blood vessels, the acid is not neutralized, but moves in an unchanged form, mainly excreted by the kidneys (about 90%), and the rest is rejected by the liver with bile (10%).

This substance is removed slowly, about half is released in 30-35 hoursand the other part can be in the body for up to 5 days.

The substance is irritating to mucous membranes, destroys the kidneys and negatively affects the nerve cells of the brain.

Drops in the ears

The drug with boric acid is allowed to use for the treatment of inflammatory processes in the maxillary sinus, eczematous changes in the ears and otitis of the outer surface of the organ of hearing. When inflammation in the ear for instillation, you can apply a three-percent alcoholic solution of boric acid.

The principle of the drug is to change the structure of proteins at the cellular level and the permeability of their membranes, as a result of which they die.

It is permissible to use means for inflammation of the ear canal only if the eardrum is not injured.

What treats your eyes?

Boric acid is often used in medicine in the treatment of various pathologies of the organs of vision. Most often this the solution is used for conjunctivitis and inflammation of the mucous membrane of the eye.

Despite the concerns, the use of this eye wash product is allowed. They treat the eyelid cavity and the eyeball in inflammatory processes.

Pest control

Boric acid in the fight against insects is applied by contact. Powder - like intestinal poison, is used in practice, mainly to combat cockroaches and ants.

It is laid out in places where insects accumulate as bait in both dry and wet forms. The manifestation of the action occurs gradually, as the accumulation of powder in the body of the insect for about 7-11 days.

Features of use by adults and children

The most common indication for adults and children is skin disinfection.

In adults, this remedy currently cures skin inflammation, otitis and conjunctivitis. In the treatment of ear diseases, turunds are used (cotton swabs that are inserted into the ear canal). A 10% solution with glycerin is used to lubricate diaper rash, and in the treatment of lice use ointment.

The doctor prescribes the course of treatment and it is better not to engage in self-treatment due to the toxicity of the drug.

Instructions for the preparation of a 3 percent mixture of alcohol

Preparation of the solution yourself:

  1. To obtain a 3% acid solution, you first need to prepare a vial, preferably with applied weight lines. First rinse and rinse. Pour 3.4 grams of boric acid in a measuring bottle and pour 120 ml of boiling water into it. Stir this mixture thoroughly.
  2. Then it is necessary to strain the solution through cotton wool or multi-layer gauze bandage.
  3. Pour into another prepared (sterile) vial, tightly plug. Store on the top shelf in the refrigerator.

In what cases helps most successfully?

In this regard, we propose to consider several categories of people with whom the use of boric acid helps most successfully.

Methods of use and application:

  1. With severe ear pain. Laying cotton swabs in the ear canal.
  2. With conjunctivitis. Instillation in the lower eyelid.
  3. From the smell and sweating feet. It should be poured overnight in shoes powder. And in the morning pour the contents.
  4. From the nail fungus on the legs. Use water bath with a weak solution of boric acid.
  5. Women in cosmetology. The preparation should be cleansed, wrinkle correction, skin rash therapy.
  6. In adolescence from acne. Cotton swab dipped in boric acid, wipe problem areas.
  7. Young women for depilation. Daily use of the drug topically for two weeks.

Drug replacement

  • With ear diseases antibacterial: “Tsipromed”, “Otofa”, “Fugentin”.
  • Anti-inflammatory - Otipaks, Otinum.
  • With eye diseases: levomycetin, dexamethasone. With retinal dystrophy: emoxipin ", taufon, aktipol.
  • Dermatitis: “Eplan”, “Skin-cap”, “Zinocap”.

Careful use of boric acid helps to improve health, besides helping to solve problems in some domestic issues, and the drug can be freely purchased at the pharmacy. Observing safety measures and only prescribed by the doctor of this medication, it will bring the desired effect.

Pharmacodynamics and pharmacokinetics

It provokes the coagulation of microbial cell proteins and disrupts cellular permeability.

Absorbed through the mucous membranes, wound surface, damaged skin, as well as enteral intake. It penetrates into many tissues and organs and can accumulate in them.

Removal is slow (with regular use, boric acid accumulates). About half of the substance is excreted in the urine in 12 hours, the remaining amount - within 5-7 days.

A 5% aqueous solution suppresses phagocytosis, a solution with a concentration of 2-4% retards the growth and development of microorganisms.

The tool has an irritating effect on granulation tissue and mucous membranes. Sucking, provokes the development of systemic toxic effects. There are descriptions of deaths caused by the use of boric acid for the treatment of damaged skin and the occasional ingestion of an agent.

When you re-enter the child's body - after breastfeeding, if the breast was previously treated with a solution of boric acid, there may be impaired kidney function, hypotension and acidosis.

Application of boric acid in the ear

For ears, boric acid powder is used for insufflations (blowing) after surgical treatment of middle ear diseases.

Before treating the ear, it is necessary to clean the ear canal and the outer part of the ear from earwax and dirt with a piece moistened in a 3% solution. Hydrogen peroxide bandage or cotton swab.

It is also allowed to simply enter a few drops of peroxide into the ear, gently rub the auricle at the base of the trestle, and, turning the patient's head to the side, remove all discharge from it.

Перед закапыванием раствора Борной кислоты в ухо, его необходимо предварительно подогреть до температуры тела. The patient's head is placed with a sore ear up, and then 3-4 drops of medicine are injected into the ear canal with a pipette. In order for the drug to be evenly distributed in the ear, it is necessary to lie up ear for 10 minutes.

The remains of the solution is removed from the outer part of the ear with a dry cotton swab. If this is necessary, Boric acid is instilled into the other ear.

During the day, the procedure is repeated from 3 to 5 times. The course usually lasts no more than 1 week and sometimes - according to indications - the treatment is complemented by the appointment antibacterial agents for topical use. The latter are instilled into the ear canal one hour after the Boric Acid solution is introduced into the ear.

In some situations, to prolong the effect of the drug, the doctor may recommend laying gauze flagella (turunds) soaked in a solution overnight in the ear.

Boric Acid Application for Acne

Boric acid for acne is recommended for people with oily skin. For dry and sensitive skin, the remedy may be somewhat aggressive due to its drying effect.

To disinfect pores, remove black spots and excess sebum, it is necessary to apply the solution twice a day on a cotton swab and wipe problem areas with it.

Girls who used Boric Acid from acne, - reviews and photos are convincing confirmation - they note that in the first days the condition of the skin often worsens, but after 5-7 days of regular use, the face is noticeably cleansed, and the skin becomes smoother and smoother.

When the quantity acne and black spots will decrease, you can go to a one-time rubbing of the skin, the point use of the solution.

The tool is suitable for systematic care, since the effect of skin addiction to boric acid is absent.

For the face, the solution can be used both in pure form and as part of the “mash”. One of the most beloved cosmetologists is the “talker” based on Levomitsetina (2 g), Boricand Salicylic acid (2 g each), 95% alcohol(up to 100 ml).

To prepare another “talker” for the face with problem skin, you should mix the purified sulfur and Streptocid (7 g) from Salicylicand Boric acid (50 ml).

Why do we need boric acid in everyday life and industry?

Wikipedia states that the application of boric acid is very diverse.

In agriculture, it is used as a fertilizer (especially valuable is boron dressing for grapes), as well as for spraying tomatoes and a number of other crops.

In laboratories, the substance is used to prepare buffer solutions, in nuclear reactors - as dissolved neutron absorber in the coolant, in photography - as part of solutions and gels for developing and fixing a photographic image, in the food industry in some countries - as a preservative E284.

In the foundry industry, boric acid acts as a binder in the acid lining of furnaces, and also protects against jet oxidation during casting of magnesium-based alloys. Jewelers add it to the solder flux.

In everyday life, boric acid is used to kill cockroaches and ants. In addition, it is used for fishing: mixed with bread and thrown to fish for feeding. From the words of fishermen, the fish from such a treat “gets drunk” and floats to the surface.


When applied externally, no cases of overdose have been reported to date.

Acute poisoning when accidentally taking Boric acid inside is accompanied by:

  • nausea
  • vomit
  • oppression of the central nervous system and circulatory system,
  • decrease in body temperature
  • diarrhea,
  • erythematous rash,
  • shock and development coma.

Within 5-7 weeks there is a chance of death.

Symptoms of chronic intoxication are:

Symptomatic treatment is indicated to the patient, hemo-andperitoneal dialysis, blood transfusion.

Fatal for an adult is a dose of 5 to 20 g. Such a large variation is due to the fact that the substance is excreted from the body by the kidneys. Consequently, the better this pair body works, the easier it will be for a person to suffer poisoning.

Since in children the renal function is relatively underdeveloped (and the lower the child’s age, the more pronounced this underdevelopment is), boric acid is most dangerous for young children and, in particular, for newborn babies.

What is boric acid?

Boric or orthoboric acid in accordance with the value of its dissociation constant is a weak acid. Acidic properties are determined not by cleavage of the H + -proton, but by addition of a hydroxide anion.

Boric acid is easily replaced by most other acids from solutions of its salts (borates). Salts are produced, as a rule, from polyboric acids, the acidic properties of which are much more pronounced (for example, tetraboric acid H2B4O7).

The formula of the substance is H₃BO. The Latin name is Acidum boricum.

The use of boric acid in gardening

Boric acid is widely used in the garden and garden as a micronutrient for various crops.

The use of boron preparations in horticulture and horticulture for pre-sowing seed treatment, the main application to the soil before planting seed, spraying and foliar feeding of plants during the growing season helps to improve the nutrition of the ovaries and increases the flow of sugars to the organs of sexual reproduction of plants.

Dicotyledonous plants, which include almost all fruit and vegetable crops, are absorbed 10 times more boron than cereals, which belong to the class of monocotyledonous plants. The greatest amount of trace element accumulates in the pulp of apples.

The most sensitive to boron deficiency are grapes, potatoes, tomatoes, fodder roots, pears, apples, sugar beets. When it is inadequate, the growing point is suppressed, the interstices are shortened, fragility of leaf petioles increases, the tubers grow small and some of them crack, the stem grows black in tomatoes and the fruits become covered with brown spots of dead tissue, the fruit necrosis develops on apples and pears.

The effectiveness of boron as a fertilizer for plants is highest on sod-podzolic and peat soils.

Boric acid spraying of tomatoes, strawberries, cucumbers, cabbage helps to increase the ovary and stimulates the formation of new growth points, increases the concentration of vitamins in fruits and increases the resistance of crops to adverse weather conditions.

Feed boric acid tomatoes and strawberries (as well as a number of other fruit and vegetable crops) reduces the likelihood of diseases associated with a lack of boron (including a hollow stem and red / brown rot in cauliflower, heart rot, scab and cork root crops, root scabs).

How to spray grapes and other fruit plants? The greatest increase in yield can be achieved with double spraying: during the setting of the buds and during flowering.

For processing using a solution of boric acid (5-10 g) and zinc sulfate (5 g). Even a one-time carrying out of such a procedure before flowering makes it possible to increase the productivity of plants by 20-36%. The introduction of boric acid in a mixture with superphosphate during the softening of the berries contributes to the increase of sugar in the berries and the improvement of their taste.

Use during pregnancy

Boric acid is contraindicated in pregnancy. Even a single intake of a non-toxic dose into the mother can cause pathological changes in the fetus.

Reviews of boric acid - this is primarily reviews of boric acid from acne and reviews on the use of means from cockroaches and other small insects.

Many women and girls believe that boric acid gives an even better result than salicylic. With its regular use, the skin becomes healthy after 5-30 days of use (depending on its initial state).

With regard to the use of boric acid to combat cockroaches, then when properly used, this tool allows you to quickly and permanently get rid of insects. Its important difference from most other insecticides is that cockroaches do not get used to it and do not develop immunity.

Pharmacy sales terms

The drug is approved for use as a means of OTC.

Here, boric acid is an old, but proven and effective drug that can be used as an antiseptic in different situations. And then they ponapriduyvat mass antiseptics at frenzied prices, and as part of boric acid, which costs a penny. I have boric acid in my first-aid kit for 10 years. In which case I use it only and do not buy expensive drugs.

I book acid (powder) in the summer in work shoes I pour, my feet, although they sweat a lot, but there is no smell.