Yes I am a research pathologist (still studying) and I genuinely think that Exfoliative cheilitis is a candidal infection in the entire oral mucosa. Candida is difficult to treat dude, over time the drugs will loose efficasy and recently in a study it was proved that most effective way is to use antimicrobial mouth wash, which already worked wonders to me and many infact. Bepanthen has definitely helped me get cured.