Hi I would appreciate your help. I have a white substance on either side of my tongue. It does not appear to be thrush. I have been tested for aids and they have been there for a while. Just today purple areas appeared next to them, especially on the right side. The upper part of my tongue is often very irritated or sore.  Is this type of thing always cancer or autoimmune illness?
Thanks for your query, I have gone through your query. The white portion can be a frictional keratitis or lichen plans. Nothing to be panic consult an oral physician and get it evaluated. If it is a frictional keratitis, we can remove the causes like smoothing the sharp cusps of teeth. If it is a lichen plans we can use topical steroids like triamcinolone acetone. The purple area can be an enlarged or dilated vein. I hope my answer will help you, take care.