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.
It is hard to predict exactly how long the skin will take to return completely to normal. Based on your description, it does sound like the injury so far is healing as expected. With scrapes like these, the scab tends to stay in place for a few weeks, after which it will fall off to reveal the new skin, which tends to be initially bright pink in color but may change to a brownish color as you have noticed as well. However, talking to your doctor will help confirm what is going on.