Chafing is one of the most annoying non-life-threatening issues. To prevent chafing, it is important that you make sure your young girl isn't dehydrated. For the fact that the more hydrated your kid is, the more likely she is to produce sweat. Sweat actually acts as a protective measure towards chafing. However, the longer your kid sits in sweat and other types of dirt or debris, the more friction that will build up and result in irritation. To prevent this, always keep your kid’s swimsuit cleaned and do not allow her to sit in her swimsuit for too long after she swims.