[BlueMoonDoll]

It sounds like you're having an allergic reaction to a common ingredient. While I have yet to find a cosmetic that does that (thank goodness) I'm very sensitive to common allergens, which mess with my eyes and change the way my eyeshadow looks. As redundant as it sounds, your skin is reacting to it (or maybe the ducts) and that is the cause. What ingredient does it? I have no clue. (Could you be getting it into your eye? This would cause the reaction even more...)