There is no fixed answer to how often to change the medicine for a scald, usually 2~3 days, and seek medical attention promptly after the scald. When the scald first appeared, due to the affected area oozing more liquid, the frequency of changing the medicine will be higher, may be 2 days need to change the medicine once, diligent change of medicine can promote the scald surface necrotic tissue off, promote wound healing. If you do not change the medicine in time, the local breeding bacteria caused by infection, but will aggravate the wound, causing a variety of complications. Scalded recovery for a period of time, into the middle and late, the wound is slowly healing, the frequency of drug change can be reduced some, at this time the wound is occurring epithelialization, change the drug frequently instead of damage to the epithelialization, increase the wound healing time, every 2 ~ 3 days to change the drug can be. It is recommended to go to the hospital in time after the burn, the doctor decided to change the specific frequency of medicine, follow the doctor’s instructions.