The blister on the foot is the manifestation of beriberi. You should buy Dactyline ointment to wipe it, which generally has the effect of sterilization and anti-inflammatory. If you persist in using it for a few days, you can cure the disease on the foot and drive the beriberi away. If the feet blister, it is better to change a pair of breathable shoes. The feet can breathe fresh air freely in the air, and the beriberi will be cured quickly. It is very important to wear a pair of breathable shoes in summer. After blistering on your feet, you should stick to soaking your feet at night. Soaking feet is also a way to treat beriberi. It is best to put some Chinese medicine that can kill bacteria and promote blood circulation. If feet are often barefoot, blood circulation on the feet will be accelerated, and beriberi will not survive naturally, and then it can be cured.