The main treatments for sweaty feet with sour odor are physical therapy, changing dietary habits and medication. 1. Physical therapy: if the feet are not clean or the shoes and socks are not breathable, you should pay attention to keep the feet hygiene in your normal life, develop the habit of washing shoes and socks, put the shoes in the sun to kill the bacteria in the shoes, and change the shoes and socks with breathable ones. 2. Dietary habits: Adopt good dietary habits, eat less spicy, stimulating and greasy food, eat more fresh fruits and vegetables, enhance their own immunity and improve the ability to resist bacteria. 3. Medication: you can use iodophor and other drugs with sterilization and disinfection, you can also use potassium permanganate solution or aluminum chloride solution with sterilization, astringent and deodorant function to soak your feet under the guidance of professional doctors, and you need to pay attention to the concentration of the solution. If the feet are infected with bacteria and fungi, you can go to the hospital for examination and use antimicrobial drugs, such as β-lactam antimicrobial drugs, quinolones and other drugs under the guidance of the doctor. If you have symptoms related to sweaty feet with sour odor, please do not blindly use medication, but should go to the hospital to avoid delaying the condition.