I read somewhere online that putting chilled potato slices on your eyes will get rid of undereye bags. The first time I tried it my eyes started to water, I thought it was because I didn't wash my facial moisturizer off first. So the second time I tried it will a clean face an my eyes started to water again. Is this normal or should I stop putting potato slices on my face? And yes, I did wash the potato before applying to my face.