Ive been experiencing constant burn sensation on my mouth. It affects my tongue,lips?

Female 58yrs.for the last 3months Ive been experiencing constant burn sensation on my mouth. It affects my tongue,lips. Only stop when I sleep. I have bed prescribed an anti fungal. Anti viral. Liryca. Nothing seams to work. I also tried increasing vitamin b. Now I will try alpha lipoid acid. Waiting to see a mouth specialist. Also when I get up I have an oily waxy film in my mouth. It goes away with a Sinutab. I am on blood pressure pills. Been on it for yrs. I take a imovane to help me sleep i been on it for years. No new meds lately. Please help it really affects my daily life. My mood and my taste buds.