It could be days before they can rescue you and your family. Some of the same techniques used in wilderness survival shelters, can be implemented in an urban emergency shelter. We need to minimize the loss of heat. Convection, if the windows and doors are closed we lower heat loss by convection to the body.
The healing time it takes for a scab on the face to heal depends on  many factors including the length and depth of the wound. Most  facial scabs take anywhere from 3-10 day â¦ s to heal.
Recovery can take between 10 and 20 days for an adult, with the possibility of mouth pain for over a month, and mild to severe bleeding when the scabs begin to heal. If bleeding does occur and does not stop on its own, you must go to the emergency room.