There is usually no so-called best medicine for treating smelly feet, which is usually caused by tinea pedis, smelly sweating, etc. Tinea pedis can be treated with antifungal medicines such as ketoconazole, and smelly sweating can be treated with formaldehyde solution and other medicines. 1. Tinea pedis: Tinea pedis is a skin disease caused by fungal infection, there may be foot odor, itching and other symptoms, can be used under the guidance of a doctor miconazole, ketoconazole and other antifungal drugs, usually need to keep the local clean and dry, wash your feet should be timely drying. 2. Foul Sweat: Foul Sweat is usually caused by poor hygiene habits, bacterial reproduction and other reasons, there may be foot odor, excessive sweating and other symptoms, can be used under the guidance of a doctor, formaldehyde solution, urotropin solution and other drugs, daily need to keep the local clean and dry. Patients should consult the doctor in time, and use medicines reasonably under the doctor’s guidance.