Ok, I have had red, burned , dry appearing lips for almost one year. My lips are painful and I put vaseline on every 10 minutes or so to manage the pain. My tongue also had a burning sensation- but no visual signs. I have been to an allergist, dentist, dermatologist, have had lab work to r/o imflammatory disorder, lip biopsy that r/o infections. It is painful and looks awful. Recently, I stopped birthcontrol pills thinking it maybe perimenapause. The last MD said go to Mayo dermatology or UCSF Dental.