Fungal infection on the back of the foot is swollen that is tinea pedis combined with bacterial infection, you can give anti-infective drugs such as furacilin solution, and give antifungal drug treatment after the infection subsides. 1. anti-infection treatment: tinea pedis is a skin disease caused by fungal infection of the feet, which can manifest as peeling, blisters, itching, when combined with bacterial infection will manifest as redness, swelling, fever, pain and other symptoms. At this time, you can use furacilin solution wet compresses on the back of the foot anti-infection treatment, serious cases can be oral antibiotics such as amoxicillin clavulanic acid potassium, cefixime and so on. 2. Antifungal treatment: after the elimination of foot infection, need to carry out antifungal treatment of tinea pedis, such as local topical ketoconazole cream, miconazole cream, or oral antifungal drugs such as fluconazole. Drugs need to follow the doctor’s instructions, the existence of tinea pedis should be timely consultation, under the guidance of the doctor standardized treatment, so as not to delay the condition.