The itchy and ulcerated toe seam in summer may be caused by tinea pedis, which can be treated by topical medications, oral medications, and improving lifestyle habits. 1. topical medication: the topical medication of tinea pedis is mainly based on antifungal ointment, such as imidazole antifungal ointment (miconazole, ketoconazole, etc.), acrylamide antifungal ointment (naftifine, terbinafine, etc.), other antifungal ointment (amorphophine, cyclopiazepoxide, etc.); patients with severe localized vesicles exudates can use boric acid solution, eschazialidin, and other wet compresses before the use of medication. 2. Oral medication: For patients with more serious itchy and ulcerated toe crevices, poor local treatment effect and repeated recurrence, they can take terbinafine, itraconazole and other antifungal medications on the basis of topical medication to help treat the problem, thus helping to improve the symptoms. 3. Improve living habits: patients should pay attention to improve their living habits to help effectively remove fungal infections and prevent recurrence, such as patients should pay attention to keep their feet dry, wear breathable shoes and socks; do not share shoes and socks, bathtubs, footbaths and other daily necessities to avoid cross-infection; timely treatment of associated nail fungal disease to eliminate the source of infection, and so on. It should be noted that the above drugs need to be under the guidance of a physician, do not blindly use their own medication, it is recommended that the patient to the hospital in a timely manner to find out the cause of the disease, and comply with the doctor’s instructions for treatment.