We use alum for many purposes, but it is also used for health and beauty.
If you are bleeding due to a cut, then grind it down and put it in place, bleeding will stop in a while.
If you have wrinkles, wash a piece of alum and rub it gently on your face, and then wash the face with rose water.
Take a bath with alum water to remove dirt and germs on your body, it also removes the smell of sweat.
If you have a blister in your mouth, place alum on that place for 30 seconds and then rinse it with normal water