Erythema, as the name implies, is a red rash that can be present in a variety of dermatological conditions and has the following possibilities. The first is eczema, which mainly appears as red papules, as well as papules, erythema, and with some itching, due to allergies, and can be treated with oral olanzapine hydrochloride tablets, one in the morning and one in the evening, and topical mometasone furoate ointment, once a day at night. The second type of psoriasis may be seen on the basis of red rash and silvery white scales, and scraping away the scales, you can see such characteristic manifestations of psoriasis as thin film phenomenon and punctate bleeding phenomenon, you can take oral amineptine tablets 3 times/day, 5 tablets/time, together with anti-silver tablets 3 times/day, 7 tablets/time to carry out treatment, and you can apply Denide ointment.