What could cause a rash inside mouth?
Patient: over the past 5 or so years i have had what feels like a rash in my mouth and/or very tender when eating or drinking. I have been to the drs numerous times first of all they said i had thrush and i had lozenges for that repeatedly, but it only seemed to make it worse so i stopped taking them, i then saw a different dr that actually looked into my mouth (by this time i could barely eat or drink anything) when he looked he nearly fell off his chair (really) he said there was two holes (sinuses?) in the roof of my mouth and prescribed anti biotics, and it seemed to heal and felt so much better, Soon after the dr left town so i havent been able to return to him. I now have another dr that said it may be Shingles, he gave me a mix of glycerin and baking soda and water to make up and it does soothe it but it is still there . sometimes it isnt sore but most of the time it is. At the moment I feel like I also have a sore neck (not Throat) and not muscular, so maybe my glands are swollen. I really cant get any satisfaction or good treatment ,I would like to know what it is, it really depresses me Doctor: Hello, thank you for consulting with healthcaremagic. It looks that you are having some kind of autoimmune infection,  may be pemphigus or lichen planus. But to confirm it you have to visit an oral medicine specialist and get a biopsy done.As just wasting time here and there better get it confirmed by biopsy and start with the treatment.Hope it will help you.