Your palm is covered with little red dot. What is this? Ask the doctor.

It should be considered whether erythema multiforme is caused by physical factors such as infection, drugs, food, cold, sunlight, radiation and some autoimmune diseases. It can be divided into erythema papule type (mainly erythema, 0.5- 1cm prototype elliptical edema erythema), vesicular type (mainly vesicular bullae, appearing all over the body, see erosion and exudation) and severe type (systemic edema-like iris erythema). Topical drugs are mainly astringent and antipruritic, such as calamine lotion, which is wet-applied with 3% boric acid solution or normal saline. Anti-infection with mupirocin for external use. Oral medication has mild symptoms, and oral antihistamine loratadine or mizolastine can be used. In severe cases, oral prednisone and other hormones are needed to maintain and support the water-electrolyte balance. Complex infections need anti-infective treatment.