Red circles on the body may be eccentric annular erythema, ringworm, or psoriasis, as follows: 1. Eccentric annular erythema: the main etiology is unclear and may be related to infection, allergy, and internal diseases. Patients can take oral Orotadine Hydrochloride tablets and treat with topical Furfuryl Glycolate lotion; 2. Tinea corporis: fungal infectious disease, fungal tests are needed to clarify the infection before treatment, and topical terbinafine hydrochloride gel and naftifine ketoconazole ointment can be used for treatment; 3. Psoriasis: the etiology is unknown, mainly due to factors such as polygenic dominant inheritance or immune disorders, and silvery white scales are visible on the basis of red circles, and scraping away The scales can be seen as a film phenomenon and punctate bleeding. Patients can use Denide ointment externally and take compound amineptine tablets orally for treatment.