You don’t put it in the waterline. It is really bad for the eyes. Not all formulas are waterline safe either. They are actually labeled not to use in that area. Those formulas can irritate the eye even more making it a mess.

Line outside of the lashes. Think of those like a fence you don’t cross. Keeping your makeup out of the waterline will prevent this from happening. It also makes your eyes look bigger to line that way. I like to use a pencil and then go over it with a matching shadow to lock it in. Tiny bit of blending so it looks soft.

If your makeup still gives you runny eyes applied outside of the waterline, you may have developed an allergy unfortunately.