Please choose the correct ending to complete the given sentence: Health: [header] How to heal a cigarette burn [title] Place the burned area under cool water as soon as possible. [step] For small areas, run the injury under cool water for 5 to 10 minutes, removing any ash and allowing the pain to dull. For larger areas, submerge the wound in a bowl or tub of water.

Ending1: As soon as the water reaches a rolling boil, gently submerge the burn in cold water for 15 to 20 minutes. [substeps] The water will soften the tissue by loosening the outer layer of skin, preventing the fresh bleeding. Ending2: When finished, gently blot the wound with a fresh towel to dry off. [substeps] Do not run the water at extremely cold temperatures or use ice. Ending3: When needed, pressure the wound for a few minutes or more. [substeps] Do not place the wound above anything other than the surface of the water. Ending4: [title] Remove your clothing and check your burn. [step] If the burn appears to be healing, wash your hands and trim your clothing as carefully as possible.

Answer format: ending1/ending2/ending3/ending4