Allergic dermatitis is a generalized diagnosis, including a variety of diseases, such as urticaria, eczema, drug rash, etc., and there are differences in the clinical manifestations of different diseases.
1. Urticaria: mainly manifested by the size and shape of different masses, mostly accompanied by itching, the specific symptoms of different types of urticaria can be different.
2. Eczema: acute patients mainly manifested as erythema on the basis of pimples, accompanied by small blisters in severe cases, can be fused into a piece, accompanied by intense itching and obvious oozing. Subacute people’s erythema and oozing reduced, there may be a little scaling and mild infiltration, still conscious of intense itching. Chronic manifestations of erythema on the papules, scales, local skin thickening, can be accompanied by hyperpigmentation and paroxysmal itching.
3. Drug rash: different types of drug rash can have different manifestations, can be manifested as a pinhead to corn size red macules, can also appear as a wind ball like, polypoid erythema-like, purpura-like damage, localized more obvious itching, part of the body is also accompanied by fever and other systemic symptoms.
When the above symptoms occur, patients should consult a doctor in a timely manner to clarify the type of lesion, and follow the doctor’s instructions for appropriate treatment.