Cause of Dermatitis

Some health conditions, allergies, genetic factors may cause irritation and skin inflammation. Different dermatitis its stimulus and resolution.
Irritation: on the skin due to contact material has a direct stimulating effect, anyone can take place after the contact reaction, its severity and the way the contact, the contact with the chemical properties of matter, concentration, exposure time is proportional to the length, in minutes to a few children dermatitis occurred within hours. Including sunlight, drugs, and other biting insects.

Allergies: these substances no adverse reaction to most people, but only a minority have allergic disease. After the initial contact does not play when the reaction is generally subject to the 4 to 20 days incubation period before exposure similar substances, can dermatitis in a few hours to 1 to 2 days, or occur in the contact area adjacent parts.
Neuromodulation: the general opinion of cortical excitability and inhibition induced dysfunction. Thoughts often due to mood swings, stress, neurasthenia disease or worse.
Infection: common fungal and bacterial infections.
Genetic: Family obvious genetic predisposition. According to epidemiological survey, the incidence of children with parents of allergic diathesis significant correlation.

Other: mood swings, mental stress, anxiety, sudden changes in the living environment Dengjun and repeated exacerbations. Gastrointestinal dysfunction, endocrine system dysfunction, infection and chronic lesions in vivo sensitized, may also become a factor.