Metronidazole may be effective in treating foot odor. Metronidazole can be used to treat intestinal and extraintestinal amebiasis, vaginal trichomoniasis, and anaerobic infections. The cause of foot odor is mainly sweat by skin microorganisms such as bacteria and fungi decomposition of odor, metronidazole can be used for the treatment of anaerobic bacteria, thus reducing the decomposition of anaerobic bacteria on sweat, but metronidazole has no inhibitory effect on the fungus, if at the same time combined with fungal infections of the patient can be applied to antifungal drugs such as naftifine ketoconazole cream treatment. Contraindication: It is contraindicated for those with active central nervous system disorders and blood disorders. Precautions: Use with caution if allergic to the product, avoid contact with eyes and other mucous membranes (e.g., mouth, nose, etc.). Patients with smelly feet should combine the characteristics of their own condition, choose the treatment plan under the guidance of the doctor, and avoid self-medication.