It does not matter if the burn has no blisters and burns all the time. Burns without blisters but burning pain all the time are first-degree burns, which usually heal quickly and usually do not leave scarring. Scalding is mainly divided into three degrees. Among them, the first degree of burns, mainly manifested as burns location erythema, the patient has burning pain, but no blister formation, the condition after recovery basically does not leave traces. The second degree burns, mainly manifested as blister formation, the patient will feel pain, if treated properly, some patients can not leave scars. A third-degree burn is mainly characterized by deep tissue necrosis, and the patient usually feels no pain, but the condition can leave serious scars or even scar contracture after recovery, which can affect normal activities. If a first-degree burn occurs, the patient can rinse the injury under running water or directly immerse it in cold water to relieve pain, and it will generally heal in 3-5 days. When a first-degree burn occurs, the wound should be actively protected to prevent infection. Patients should avoid smoking in bed in their lives and should unplug the iron in time when not using it to avoid accidental burns.