Sweat blister

Dyshidrosis, also known as poor sweating, is a blistering disease of the palms and feet. This disease is similar to TCM snail blister. For example, "Yizong Jinjian, Surgical Heart Method" records, "The primary shape is like bean grains, yellow blister is swollen, the pain cannot be touched, the blister is formed, and the skin thickness is difficult to break." Some people call the disease those who suffer from footworms.