Please choose the correct ending to complete the given sentence: Health: [header] How to treat second degree burns caused by heat [title] Eliminate the cause of the burn. [step] End contact with whatever heat source caused the burn as quickly and carefully as possible. Remain calm after suffering a burn.

Ending1: If treating someone else, say soothing, comforting things like, " it's not that bad, " or " you'll be all right. " [substeps] If you were burned by flame, move away from the source of the flame and practice the stop, drop, and roll method to put the fire out. Ending2: You should also prevent yourself from becoming frustrated with your burn. [substeps] Keep in mind that burn burns can be difficult to separate from the skin. Ending3: Don't disturb your friend or family member while you are healing. [substeps] Seek medical attention if this is your first time this type of burn occurred. Ending4: This means you should keep yourself in a cool environment and do not turn heat on your head and face. Cooling down the burn has to be done within several hours of the burn.

Answer format: ending1/ending2/ending3/ending4