How long will the pain stop after a burn depends mainly on the degree of the burn and requires specific analysis of the problem. A first-degree burn presents with a localized increase in skin temperature, significant pain, slight redness and swelling, but no blister formation, and its pain duration varies from a few hours to 1-2 days. In the case of superficial second-degree burns (injury to the epidermis and part of the dermis), the pain may last for 2-3 days. If it is a deep II degree burn (injury to the epidermis and most of the dermis) to III degree burn (injury to the whole skin), with the deepening of the depth of injury, you may not feel very painful after the burn instead, because the skin is completely necrotic and insensitive to pain or the pain disappears completely, although the trauma is not painful at this time, but you must go to the dermatology or burn department in time for regular treatment. If the burns are only red on the skin surface and there are no blisters, you can rinse or soak the affected area with cold water for about 20 minutes to reduce the skin temperature and prevent further damage, and also to relieve pain to a certain extent.