Adult neck eczema can be categorized into acute, subacute and chronic, with different symptoms, commonly including erythema, blisters and so on. 1. Acute eczema: often appear symmetrically distributed polymorphic lesions, in the erythema on the basis of the appearance of papules of varying sizes, papules, serious cases can appear small blisters, often fused into a piece, the border is not clear. Patients are often self-conscious of severe itching, scratching the lesions to make them appear punctate vesicles, accompanied by plasma exudation. 2. Subacute eczema: the manifestation of dark red papules and a small number of papules, there may be a small amount of scales and mild infiltration. Redness, swelling and exudation can be reduced. The patient is conscious of itching. 3. Chronic eczema: the skin of the affected area appears to be infiltrated with dark red spots, erythema on the papules, scratches, scales, etc., local skin thickening, surface roughness, different degrees of tinea versicolor. Accompanied by obvious itching. If there is any discomfort, it is recommended to consult a doctor in time, and standardize the treatment according to the doctor’s instructions after a clear diagnosis.