Scald blisters are getting bigger and bigger and need to be picked, but they need to be operated by a professional physician to avoid infection and other adverse consequences. Scalding blisters generally belong to the second degree burns, more common in daily life, if the burns are not large, the blisters are relatively small, generally do not need to be broken, can be absorbed on their own. But if the blisters are getting bigger and bigger, and the pain is obvious or affects the activity, you need to use a sterile syringe to draw out the fluid under strict sterilization in the hospital, and gauze cover to protect the trauma to avoid secondary damage and pollution. Because of the increased vascular permeability after scalding, it will cause the plasma in the blood vessels to exude to form blisters under the epidermis. In the blister fluid contains a large amount of protein, rich in nutrients, and bacteria multiply faster, which can easily lead to deepening infection. After the blister is picked, pay attention to keep the blister skin and avoid getting wet to prevent secondary infection.