Red round rash may be ringworm, allergy, etc., need to be treated according to the situation.
1. Ringworm: the superficial parts of the skin caused by ringworm infection, manifested as the edge of the elevated erythema, papules, papules, etc., can use clotrimazole, ketoconazole and other antifungal drugs; symptoms are serious or the effect is not good, you can use itraconazole, terbinafine, and other medicines for treatment, but also need to pay attention to personal hygiene.
2. Allergy: local contact with allergic substances can cause allergic reactions, erythema, papules, edema with itching. Anti-allergic drugs can be used, such as loratadine, cimetidine, cetirizine and other drugs; severe cases can use glucocorticosteroids such as prednisone and dexamethasone.
It is recommended to go to the hospital for examination in time, and use medication under the guidance of the doctor, do not self-medication.