The foot rot is considered to be tinea pedis, eczema, diabetic foot, etc., you can smear antifungal ointment, glucocorticoid ointment or use hydrocolloid wet compresses and other medications. 1. Tinea pedis: Tinea pedis is a fungal infection, the fungus invades the skin will cause erosion, you can use potassium permanganate solution for wet compresses, after the erosion improves, you can smear antifungal drugs, such as ketoconazole, terbinafine cream. 2. Eczema: Eczema is a chronic inflammatory skin disease, severe oozing tendency, looks like rotten, you can use boric acid solution for wet compresses, and then use tretinoin cream, dexamethasone cream, if the exudate is not much, you can apply zinc oxide oil. 3. Diabetic foot: diabetic foot is a more serious complication of diabetic patients, this disease is generally not recommended to apply local antibiotic drugs or other creams, mainly the use of hydrocolloids and other wet dressings to promote traumatic fibroblast proliferation, while also needing to control blood glucose, antibacterial drugs through intravenous drip to control infection. The emergence of foot rot to seek medical treatment as soon as possible, do not delay the condition, for the cause of the drug treatment. All of the above drugs should be used under the guidance of a doctor, not blindly used on their own.