When I am in sunlight like in Florida ( I live in Wisconson) I thought I was getting cold sores. But now I see that is like fever blisters on the inside of my Lower lip. It is sore, tender and a mess. Some situations, spicy or cold or hot, it shots pain in my lip. I put vasoli even on to get it soften but it takes weeks for this to heal. I do not know if it the sun, water or the lip balm spf factor. I thought it was the hot sun of Florida but it happened in South Carolina only a day after day at pool. The. It happened on a one day boat trip in Illinois. Have you ever seen this? Can there be suggestion to heal this faster. As r boat trip was last Wednesday and it is still sore, open and painful. Please help, I have an apt with dermatologist, but it is not till late August