Ringworm is a skin disease caused by a pathogenic fungus that lives in keratinous tissue. How to recognize ringworm】 Superficial fungal diseases are widespread and are common in all regions of the world, as well as in China. Ringworm is contagious and can be transmitted both by itself and by others. The disease is transmitted by direct contact, such as ringworm, which is often caused by direct contact with children suffering from ringworm or animals suffering from ringworm; or indirect contact, such as the frequent use of things used by patients with ringworm, such as slippers, pillowcases, foot rubs, etc. Ringworm may occur. Diagnosis】 Superficial fungal disease can be diagnosed based on medical history and clinical features. If necessary, the following auxiliary tests can be performed: i. Fungal microscopy: A positive fungal test can confirm the diagnosis, but a negative test cannot exclude the diagnosis of ringworm. (b) Fungal culture: Inoculate scales, hairs or herpetic membranes taken from the lesion and put them into a thermostat for incubation. 5 days or so, colonies can be seen to grow and the strain can be identified. If there is no colony growth after three weeks of culture, it can be reported as negative culture. Third, filtered ultraviolet lamp examination: certain fungi, under the filtered ultraviolet lamp irradiation with color fluorescence. The presence or absence of fluorescence and the different colors can provide an important clinical reference for the diagnosis of superficial fungal diseases, especially ringworm of the head. The treatment of ringworm is a systemic treatment: (a) Imidazole: ketoconazole, itraconazole, etc.: can be used to treat ringworm of the head, followed by ringworm of the body, severe ringworm of the femur, and ringworm of the nail. Contraindications: Abnormal liver function, pregnancy and lactation are prohibited. (II) Terbinafine Hydrochloride: Lamisil tablets can also be used for the treatment of ringworm of the head, ringworm of the body and nail. Topical therapy: For superficial fungal diseases that do not involve hair or nail plates, topical therapy can be effective, but patience is needed to adhere to a longer period of rubbing. (a) General topical antifungal drugs: our compound benzoic acid application and ointment, compound copper sulfate solution, compound lactic acid application and ointment have special effects. (B) specific broad-spectrum antifungal agents: like miconazole, ketoconazole, clotrimazole, etc. often made of 1 to 2% cream to supply. Lemetil cream is a topical preparation of terbinafine, can also be applied locally.