The most common causes of foot blisters are caused by excessive friction and also due to burns. If the blisters are caused by friction, it depends on the size of the blisters, if the diameter is not more than 0.5cm, they do not need special treatment, and will be absorbed by themselves in a few days. If the size of the blisters on the feet is relatively large, you can carry out the disinfection of iodine povidone or alcohol disinfection, and then use a sterilized needle to puncture the blisters, drain the liquid inside the blisters, use sterile gauze to bandage, avoid infection, avoid foot water. If the blisters are caused by athlete’s foot, avoid scratching with your hands, and use medications for athlete’s foot, such as Dakin.