Scalding 3cm blisters are not considered large blisters, belonging to the second degree of scalding, if the volume of the blister is not large can be self-healing, if the volume is too large, the possibility of self-healing is very small, you need to go to the hospital in a timely manner to deal with. Scalded 3cm blisters if the volume is very small, tissue fluid content is low, do not need to pick through the blisters, in a certain period of time due to the existence of the body’s ability to absorb the tissue fluid, and the epidermis of the blisters can provide a sterile environment to avoid infection, the volume of small blisters can be added with some scald cream, gauze bandage treatment to avoid compression of the blisters, for the volume of larger blisters, the need to go to the hospital in a timely manner, to extract the tissue fluid inside the blisters, to avoid compression of the blisters. For larger blisters, it is necessary to go to the hospital in time, extract the tissue fluid within the blisters, carry out local disinfection and debridement, and the serious ones need to use some antibiotics preventively. Scalded blisters do not blindly pick through, blisters can provide a sterile environment, can effectively prevent infection, the local symptoms of serious patients need to consult a doctor in a timely manner, under the guidance of the doctor standardized treatment.