There are several possibilities for fungal infections of the skin: 1. tinea capitis: can occur unilaterally on the hands and feet, appearing as erythema, papules, blisters, maceration, vesicles, and oozing with itching; 2. sweat patches: mainly caused by Sphaerococcus furfur infection, can appear as flaky brown patches and do not protrude from the skin, and can have mild itching or no sensation; 3. sporotrichosis: can be due to trauma caused by trauma, in the limbs appear hard nodules part can be connected in a series. All of the above fungal infections require antifungal treatment, and can be treated with topical terbinafine hydrochloride gel and oral itraconazole capsules.