Ringworm on the waist and back refers to tinea corporis, which is a superficial fungal infection of the skin caused by dermatophyte infection. It can be treated by general treatment and medication. 1. General treatment: pay attention to local cleanliness, try not to use alkaline toiletries, try to avoid scratching with hands, clothes need to be changed in time and thoroughly sterilized; avoid eating spicy and stimulating food in diet, and avoid smoking and drinking. 2. Medication: Miconazole nitrate cream or terbinafine hydrochloride ointment can be used externally under the guidance of a physician for local application, accompanied by flaking and dryness can be combined with urea Vitamin E ointment for alternate application. If the infection is more serious, oral itraconazole and other antifungal drugs can be taken under the guidance of a physician. It is recommended that patients go to the hospital in a timely manner, by the physician according to the condition of reasonable treatment methods, the use of drugs need to follow the doctor’s instructions, to avoid blind self-medication.