Erosive blisters are herpes that rise above the skin and contain watery fluid. Blister formation is mostly the result of inflammatory reactions, such as those caused by bacteria, viruses, parasites (scabies), or allergic reactions, and commonly includes aspergillosis, herpes-like dermatitis, and herpes zoster. The lesions of pemphigus are characterized by large blisters on normal-looking skin and mucous membranes with epidermal peeling, occurring in folds of the skin, and are most often seen in middle-aged people. Herpes-like dermatitis and herpes zoster are polymorphic lesions. With the onset of summer, some of the skin is exposed and people may be burned by boiling water, oil, chemicals, etc. if they are not careful. To deal with blisters after burns, you can first drain the water from the blisters at a low level and then rinse the wound with natural water for more than half an hour. After a burn, one should use a sterilized pinhole, scissors, etc., to poke the blister from the low side of the blister and release the water inside, because the blister is rich in inflammatory substances that can easily cause infection. However, when draining the blister, one must also be careful not to break the skin outside the blister, because the intact skin is the human body’s barrier against bacterial invasion, and once it is broken, the bacteria will quickly invade and infection will occur.