Types and symptoms of common dermatitis

summary

Dermatitis is a common skin disease with many kinds. It often occurs on the face, neck and limbs. In severe cases, it can spread all over the body, with erythema, skin lesions, scales, etc., causing different degrees of pruritus, which has a great impact on the life of patients. Here are the types and symptoms of common dermatitis.

Types and symptoms of common dermatitis

Contact dermatitis, is due to the skin mucosa contact with certain substances, in contact with the site of acute skin inflammation. The causes can be divided into primary irritation and allergic reaction. The clinical manifestations were erythema, blisters, bullae and even necrosis. The course of disease is self limited.

Seborrheic dermatitis, prone to more sebaceous glands distributed in the place, such as scalp, face, chest and wrinkles. It occurs on the scalp, with mild moist erythema at the beginning, covered with gray white chaff like scales, accompanied by mild pruritus, rash expansion, and oily scaly map like patches; Severe cases are accompanied by exudation, thick scab and odor, which may invade the whole head. Hair can be shed and sparse. Facial damage is more common in the alar, nasolabial groove and eyebrow arch, with light red spots, covered with greasy yellow scales, often covered with greasy. In the chest and scapula, small reddish brown follicular papules with greasy scales were found at first, and then gradually became small scales in the center, dark red papules and large greasy annular patches on the edge. The wrinkle part is often seen in armpit, breast, umbilicus and groin. It is a clear red spot with little scurf, moist, and often accompanied by erosion and exudation.

Solar dermatitis, especially in summer, is a delayed photoallergic skin disease induced by sunlight. Some people think it is mainly caused by UVB, while others think it is mainly caused by UVB. The clinical manifestation is pleomorphic rash, which may include erythema, papules, blisters, erosion, scales, and lichenoid changes, often with some kind of rash. The main manifestations were plaque, erythema, eczema, prurigo and urticaria.

matters needing attention

The skin of patients with dermatitis belongs to allergic constitution, so patients should pay attention to careful diet in life, avoid eating food that will stimulate the skin of the human body, especially the spicy food of pepper and coffee, so as to avoid aggravating the disease, so people should pay attention to it.