I saw my dentist this am he says it is not thrush and he has no idea of what is causing it said it could be an autoimmune problem. Wanting to send me to another doctor the knows more about the mouth than a dentist. The inside of my right cheek is very painful sometimes especially with drinking the jaw is also painful. I am so frustrated. He gave me a prescription for the mouth tablets they give for thrush to try. The awful taste remains not matter what I eat or how I brush.