well they found nothing from my biopsy, but I dont know the circumstances surrounding your case of exfoliative cheiltis so if you want try. I went to an oral pathologist after getting no help from an oral surgeon. The oral pathologist diagnosed me with exfoliative cheilitis told me that it should resolve on its own. He suggested that if I could not wait that I use a new medicine helped to help treat skin cancer by causing inflammation in the area applied so the skin peels off. I saw no point to becoming a lab rat so I didnt try this as well as this medicine was not covered fully by my insurance.