If the burn is caused by white phosphorus, the dressing must be wet. Apply the dressing, white side down, directly over the wound. Wrap the tails so that the dressing is covered and both sides are sealed. Tie the tails into a nonslip knot over the outer edge of the dressing, not over the wound. Check to make sure that the dressing is applied lightly over the burn but firmly enough to prevent slipping.
Electricity often leaves entry and exit burns.
Both burns should be treated. Observe Precautions to avoid further injury. Do not break blisters. Do not apply grease or ointments to the burns. If the casualty is conscious and not nauseated, give him or her small amounts of water to drink.