Demodex Brevis: Structure, How To Treat, Symptoms

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Demodex Brevis: Structure, How To Treat, Symptoms
Demodex Brevis: Structure, How To Treat, Symptoms

Video: Demodex Brevis: Structure, How To Treat, Symptoms

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Video: Demodex Treatment (HOW TO TREAT DEMODEX!) 2023, February

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  • Causative agent of the disease
  • Distribution and routes of infection
  • Factors affecting the reproduction of demodex
  • What does the activity of ticks lead to?
  • Symptoms
  • How to treat
  • Herbal treatment regimen


  • You can defeat parasites!

What is demodicosis is the first question at a dermatologist's appointment, which is asked by adolescents or adults with acne. This rash has the character of rosacea - inflammatory elements above the surface of the skin. The shade is bright red.

The pathology is caused by Demodex skin mites. There are two types of pathogens that can be transmitted from dogs through feather pillows:

What to do in such a situation? To get started, we recommend reading this article. This article details the methods of dealing with parasites. We also recommend contacting a specialist. Read the article >>>

  • D. Follicullorum - affects the bulbs of the eyelashes, causes demodectic blepharitis,
  • Demodex brevis is a mite that feeds on the secretion of the sebaceous glands.

Causative agent of the disease

Glandular mites from the genus Demodex choose the place of their localization mainly on the skin of the face. In this case, the brevis variety chooses the sebaceous glands, of which there are so many in the area of ​​the nasolabial triangle, less often in the back and chest. The long glandular or longus is localized in the hair follicles of the eyebrows and eyelashes.

Demodex brevis feeds on epidermal cells and sebum (sebum).

Spring-summer is the most favorable time for mating. Ticks are afraid of light. Therefore, in the evening and at night, they crawl out to the surface of the skin, where two individuals join. This explains the itching that occurs in the evening and gradually increases towards night. While the parasites are on the surface, they become dangerous to another person.

Half of the population is a carrier of ticks, and at the same time, people may not have signs of demodicosis on the face, therefore, iron glands are classified as conditionally pathogenic flora, which is activated only under the influence of certain factors.


Distribution and routes of infection

According to statistics, up to 5% of the population suffer from demodicosis. Women of childbearing age are predominantly susceptible to the disease, in whom the disease is 4 times more common than in men. After 45-50 years, the disease occurs in almost 100% of the population. In children, cases are rare, due to the low level of sebum production. In this case, seeding with a tick occurs precisely in childhood.

Demodex brevis live everywhere in all geographic areas without exception. The source of infection is a sick person or carrier.

Demodex is distributed in several ways:

  • the main one - through bedding, clothing and personal items;
  • suspected - ticks colonize the baby during breastfeeding and are transmitted from the mother.

Factors affecting the reproduction of demodex

Zhelezniki can live for many years in the human epidermis, and at the same time do not manifest themselves and do no harm to health, but when a number of factors arise, they become activated and begin to multiply intensively.

When demodicosis occurs in a person on the face, the reasons may be as follows:

  • changes in the properties of sebum and, as a result, a violation of the ratio of microorganisms;
  • in the digestive tract of ticks, the bacterium Bacillusoleronius lives, which, after the death of the host, enters the ducts of the glands and secretes substances to which the immune system quickly reacts, as a result of which inflammation occurs;
  • any systemic disease can contribute to the activation of microorganisms; overuse of sun rays - actively produced vitamin D increases the risk of inflammation.

What does the activity of ticks lead to?

Acne iron acts on a person in several directions at once:

  • Feeding on cells, microorganisms damage their structure not only mechanically, but also by chemicals contained in their saliva. The result of such activity is the appearance of inflammatory nodules, excessive keratinization of cells, and discoloration of the skin.
  • After the death of the iron, substances are released that provoke the immune system to produce antibodies, which may result in the appearance of allergies.
  • By suppressing the immunity, the glandular thereby stimulates the activation of other inhabitants of the human skin belonging to the category of "opportunistic".
Trigger mechanism of the disease demodicosis
Trigger mechanism of the disease demodicosis


With Demodex brevis, a rosacea-type rash appears on the face - these are large red coals. If there are a lot of ticks, then convex granulomas are formed. They do not itch and do not bother a person. But the number of blackheads continues to grow, the skin becomes lumpy and greasy. Vascular networks and capillaries expand.

The more mites live and reproduce, the more greasy the skin becomes. Against the background of the long life of Demodex without treatment of pathology, an allergic component eventually joins, which increases edema and redness. A vicious circle is forming.

In men with demodicosis, the problem of rhinophyma is urgent. This is an inflammatory lesion of the skin of the nose with hypertrophy of all elements. Before the appearance of rhinophyma, demodicosis developed in the skin for more than one year.

Demodectic mange of the head is a rare pathology that often develops against the background of seborrhea and is characterized by hair loss, flaking and dandruff, and itchy scalp.

Interestingly, the demodex mite can safely live in small quantities in the human epidermis, that is, on the upper layer of the skin. It does no harm and feeds on keratinized cells.

The Demodex brevis mite can be picked up from dogs. German Shepherds and French Bulldogs are often ill with it. But toy terriers and cocker spaniels do not suffer from this pathology. Demodectic mange is also transmitted from an infected person through close household contact and the use of pillows and shared towels.

If demodex is localized at the edge of the eyelids, then the symptoms are as follows:

  • feeling of a foreign object in the eye,
  • redness and irritation of the eyelids,
  • clumping and falling out of eyelashes with subsequent irregular growth,
  • tired eyes.

If the human body begins to secrete more sebum, then there is a risk of activating demodicosis. Exacerbation of the pathology is observed in the autumn-winter period, when the nonspecific skin resistance decreases. Hormonal changes in the body, especially local hormonal ointments, can provoke demodicosis.

Demodex on the face
Demodex on the face

How to treat

Treatment of this disease requires long-term therapy. This is due to the fact that many drugs can affect young and adult ticks, but eggs and larvae still remain intact.

Treatment involves an integrated approach. Dermatologists try to combine local and systemic therapy. For topical use, a dosage form such as an ointment is well suited. Demodex mite ointments are made with a base that is not suitable for mite nutrition. As a rule, the base is petroleum jelly.

It promotes the penetration of medicinal substances deep into the skin. For the treatment of demodicosis, both old Soviet inexpensive ointments (sulfuric, ichthyol), and specialized pharmacological ointments (yam ointment, permethrin, trichopolic, zinc ointment, ointment with benzyl benzoate, and others) are used. Treatment with this form of drugs lasts from 7 to 28 days. The course of treatment is prescribed by a specialist.

In the treatment of trichopolum ointment, in addition to local exposure, oral administration of trichopolum (metronidazole) is necessary.

This will make the treatment more effective. The ointment is applied for 14 days, while the tablet form is applied for 21 days.


As in all areas of modern medicine, there is a problem with the treatment of pregnant women, because many medications (even local ones) have a detrimental effect on the fetus, which can lead to deformities, malformations or death.

However, there is no such problem in the treatment of demodicosis. Ichthyol ointment is well suited for the treatment of expectant mothers, since it does not enter the bloodstream, but acts exclusively at the site of application.

In addition to ointments, there are new generation cosmetics (at the time of 2018) that act on the pathogen and "breathe" new life into the skin. These are Manting and Xinsheng creams. They are developed by cosmetologists on the basis of natural ingredients (according to the manufacturers).

However, they should be used for a long time - up to six months - so that the effect is noticeable. Also, these creams are quite expensive (the average price of Manting cream in the Russian Federation is 1144 rubles against 40 rubles for the cost of sulfuric ointment) and they are effective only in combination with other creams and lotions from these manufacturers.

Herbal treatment regimen

In Russia there are many people who do not trust modern medicine and young doctors, so they resort to folk remedies for treating ailments. There are herbal recipes that can help treat demodicosis.


This therapy is based on the systemic intake of a decoction of wormwood from a tick. To do this, prepare a fresh broth. Ingredients:

  • 2 dessert spoons of dried wormwood;
  • 1000 ml of boiled water.

Wormwood is poured with water and cooked for an additional 5 minutes. Then the broth is infused in a dark, warm place for 3-4 hours. The course of treatment is 6 days. It is best to start on Monday so you don't get confused in the diagram. You need to take the broth as follows:

  1. Monday - 100 ml of broth every 60 minutes;
  2. Tuesday - 100 ml of broth every 120 minutes;
  3. From Wednesday to Saturday - 100 ml of broth every 180 minutes.

With such therapy, you can not only expel the tick, but also cleanse the gastrointestinal tract of toxins.

Aloe is a well-known plant that helps relieve itching and irritation of the skin. In cosmetology, this plant is popular.

Its extracts are added to creams, soaps, shampoos, lotions, bath foams and other cosmetics.

Some medications (for example, trichopolum ointment) at the initial stages of therapy will not save the patient from itchy discomfort. However, aloe juice diluted in water in a 1: 1 ratio will perfectly cope with this.

A piece of cotton wool or a cotton pad is moistened in the prepared liquid and applied to the places where itching is most intense, for 10-15 minutes. This action is repeated 2-3 times a day. Aloe juice not only relieves itching, but also relieves redness and inflammation from the affected skin. This remedy is effective only in combination with drug therapy, since it does not affect the subcutaneous tick.

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