About 12 days ago I noticed my bottom lip started to swell. I had just used a new lipstick, the kind that stains the lips then you put on a clear coat. I have been using this type for many months. The lip was stinging, & burning along with the swelling. I also thought this was a reaction to some antibiotics I was on. I have never had this happen before. Now, 12 days later my lips are not swelled but they still have blisters that burn, even water from the shower burns them. I have used carmex & other lip balms but they burn too, now I am using a Vit E gel capsule which helps some. I don't have any blisters in the corners of my mouth. I also took Benadryl for several days with no change. Inside my lip was also getting cuts, like the lip was very tight & stretching to rip. The lip feels like sandpaper. What could this be?