Almost every woman suffers from this. One way to prevent chafing is to rub calamine lotion on your thighs. The lotion will absorb sweat and fight the thigh friction.
Another way is to swipe your deodorant onto your inner thighs. As long as the skin is completely normal (ie. no irritation, inflammation, or open areas), it is safe to apply antiperspirant on the thighs.
