Answer: Cover the burns with a clean, white, dry sheet.
Explanation:
The first degree burns affect the outer surface of the skin, these may cause redness, swelling and pain. The second degree burns may affect both outer and underlying surface of the skin. These burns may cause pain, swelling, redness and blisters. The third degree burns are the severe and lethal burns these affect the nerves and the bones.
The medical responders have removed the clothing and has cooled the burn. The responder must cover the burn and blisters with dry white sheet to prevent the contact of external air with the blisters which may cause irritation and itching at the burn site.