Itching And Dermatitis Caused By Demodex

Hello doctor! Can I ask if Demodex dermatitis is dangerous, how do they spread the disease and can this treatment be completely stopped?
Hello, Demodex dermatitis is one of the diseases caused by a arthropod insect, they temporarily parasite in the hair follicles, near the pores, sebaceous glands, sweat glands, on the scales of human skin or animals. Demodex belongs to the family of mites, which is the smallest parasite in the leg joints that our eyes do not see, is known to have about 65 types of Demodex but commonly there are two main types of human parasite: D. folliculorum and D. brevis.
The Demodex parasitic in human pores causes itching
Where is Demodex located in the human body?
When Demodex parasites get into human skin, they parasitize in hair follicles or sebaceous glands. They use sharp beaks to puncture the epidermal cells and secrete hydrolyzed lipase enzymes as the main food source. The high concentration of Demodex causes folliculitis to widen, forming a horn button that clog the hair follicles and reduce the excretion of sebum, which causes the skin to become dehydrated resulting in dryness and scaling. People infected with Demodex will often experience the sensation, stinging, burning, itching, discomfort, and irritation caused by the parasite's growth and movement

The main disease sites in the face, scalp, on the chest, back, buttocks, because that is where the most concentrated hair follicles and sebaceous glands, they occupy 4-5 times the other skin At the same time, our facial skin is in constant contact with the environment, so this is a place to create favorable conditions for Demodex to invade, develop and cause disease.
Facial itching and dermatitis caused by Demodex
Demodex dermatitis can be transmitted through direct contact such as kissing, rubbing the cheeks, using shared items (blankets, pillows, towels, etc.


Itching And Dermatitis Caused By Demodex

.). Demodex dermatitis is more common in adults, due to oily sweat glands and in women due to moisturizer. However, not everyone infected with the Demodex parasite has clinical manifestations. Only when the host's resistance is reduced, the amount of Demodex concentrated on the skin from a few months to a few years will show symptoms. Sometimes they can live and reproduce on the skin but there will be no clinical manifestations because our skin is not allergic to this parasite
Depending on the number of Demodex, each stage of disease and the resistance of each body, the expression of the disease will vary
Patients with Demodex dermatitis often present with nonspecific but typical symptoms such as itching, redness of the skin, follicles with pustules, scabs, skin nodules, and scalp inflammation. , patchy hair loss, or acne.
Demodex treatment
Take oral medication to kill Demodex from within
Topical medication, because Demodex is an inflammatory skin lesion, so it needs topical healing. At the same time, Demodex is an animal that moves throughout the surface of the skin and burrows into the pores.


Itching And Dermatitis Caused By Demodex

. Therefore, a combination of topical treatments is required to kill Demodex.
Demodex should be removed as soon as possible to prevent infection. If Demodex is removed, the inflammatory process will stop, your skin will become smooth again, tighten the hair follicles, reduce sebum secretion. Treatment needs to start early because they are easily transmitted through skin-to-skin contact, infected people have no clinical manifestations but can infect others If you adhere to all the issues to prevent spreading Demodex dermatitis to others, it may be completely treated.
When Demodex shows signs, patients need to visit a parasite specialist for advice, examination, and treatment according to the regimen for the best effect.
Ds. Nguyen Thi Thuy.

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