Clinical consideration may be an allergic skin disease, such as neurodermatitis, in the joints of the area is prone to this rash, and there is obvious itching. In the treatment, you can choose antihistamines and topical drugs, the general effect is still good, so after the appearance of such bumps, you should go to the regular hospital diagnosis after clarification, give appropriate topical and oral drug treatment. Topical medications generally include hormonal creams, such as mometasone furoate, fluticasone propionate and so on. For those with obvious itching, antihistamines can be given to stop the itching, such as loratadine, cetirizine and so on. Traditional Chinese medicine can also receive good results, and should be recognized and treated.