Yes, sorry, this is another unfortunate side effect of making the switch to natural deodorants, as your body isn't drying itself as effectively as it might with the help of an antiperspirant. "Sometimes, this damp feeling turns into sweat stains on your clothes. Dabbing with some witch hazel on a cotton swab can help stop the stains and the sweat through the day," says Ilyas. If you're in a pinch, "apply hand sanitizer directly on a tissue, then swipe across your underarm," she adds.