i have a good idea of what MIGHT work. i have not tried it yet becuase im kinda a pussy when it comes to putting stuff on my lips(i dont even like all natural chapstick). It is Caladryl lotion for poison oak. it is a topical antihistamine with active ingrediant benadryl. Its for stopping illergic reactions. i heard of a case where lots of benadryl was taken and the person got better. So if you are willing to try or if you ask your derm about it, maybe it will work.