the same thing happens to me. I find that if I don't itch it (the spot) it eventually goes away. I personally feel that it it is a skin reaction. If you think about it, that small piece of skin was covered by the pod for 2-3 days, the skin received no oxygen. Also, think of it this way, when you put a band aid on your finger -- and take it off the next day, doesn't the skin look kind of strange and bumpy? Same situation with the pump. Also, good point pastelpainter, I have excema and lotion does help things get better. But, I would be concerned about the adhesive sticking with the lotion on the skin. Good luck!