Sweat blister is also called dyshidrotic eczema. This kind of eczema is a blister disease that mainly occurs in the palms and soles of the feet. The cause of this disease is not very clear, but generally it may be related to the excessive sweating of patients, the formation of a certain amount of sweat retention, and eventually the formation of a certain amount of blisters, Now some people think that sweat herpes is an endogenous skin reaction. Generally, it is also an allergic disease. Some people may also be allergic to certain metals, such as nickel, chromium and other metals. Therefore, the causes of this disease are very complex. Some people may also have a certain relationship with mental factors. For example, excessive mental pressure may also lead to blisters. If this disease occurs, it is necessary to control the continuous development of blisters in a timely manner. In case of certain dryness symptoms, some emollient drugs can be applied externally, such as vitamin E cream.