Im curious to find out what this rash is around my lips. I went out on the water on sunday and Monday it started. I started using Benadryl which has worked but im curious to find out what it is. Its red with little bumbs and the lines around my mouth are red. Does anyone have any idea on what this could be? I have an appointment scheduled with my dermatologist, but I would like a little insight about what it is. If you can help I would greatly appreciate it.