1, seborrheic dermatitis
Skin oil secretion as a trigger, accompanied by Malassezia fungus, producing skin inflammation. Generally occurs in the face, scalp (accompanied by hair loss), eyelids, forehead, armpits and other parts of the surface attached to the greasy scales, lesions showing dark yellow erythema or pimples, itching intolerable.
2, contact dermatitis (allergic dermatitis)
Contact dermatitis, also known as allergic dermatitis, is the skin epidermal contact with dust mites, pollen, alkaline substances and other allergenic substances, resulting in inflammatory skin reactions, itchy, patches of red spots. There is a single rash pattern, and the onset of the disease is preceded by contact with allergic substances.
Typical symptoms: erythema, erythema, papules, blisters or macules. Characteristics: single rash type.
3, hormonal dermatitis
Hormonal dermatitis due to improper use of hormones caused by skin capillary dilation, epidermal, dermal thinning, hypopigmentation or hyperpigmentation and other symptoms of inflammatory skin reactions, accompanied by itching or burning sensation.
4, solar dermatitis
Solar dermatitis mainly due to ultraviolet radiation, epidermal capillary expansion caused by skin inflammatory reaction, manifested in the face, forehead and other exposed skin, skin itching, self-consciousness burning or tingling sensation, often affecting sleep. And accompanied by erythema, edema, blisters, hyperpigmentation and so on.
5, neurological dermatitis
Neurological dermatitis is due to endocrine, gastrointestinal function, mental factors and other reasons, is a special kind of dermatitis. Neurodermatitis is accompanied by paroxysmal itching, especially serious at night, scratching with breaks and scabs, long-term recurrence.
The first flat papule-like, later fusion into a piece, hypertrophy, deepening of the skin lines, skin crags bulging, moss-like symptoms.
6, atopic dermatitis:
Atopic dermatitis: is a chronic skin disease associated with heredity, manifested as itchy skin and accompanied by erythema, blisters, etc., the main feature is recurrent and allergic.