freewillie
Contributor
She might just have sensitive eyes. Best way to prevent eyes from burning is to prevent water from getting in the mask to start. If she has problems with her mask leaking then she should consider getting a better fitting mask. Typically a mask that fits well should leak at all, or just a very slight amount that shouldn't get into her eyes. Also, her mask could fit okay but if she tightens the straps too much that prevents the mask from seating well and can leak. Personally my favorite defog is baby shampoo.