[quote=Cheryld]They said contact hypersensitivity. That would be more concerning and likely something you can deal with. In those areas do you have sharp teeth, caps or fillings? I'm assuming you don't use chewing tobacco or smoke.
One of the suspected causes of this cancer in people who have no precursors (occasional drinker, non smoker, non HPV) would be chronic irritation. In other words something there is irritating that patch of skin.

In my case it was a very sharp tooth, and a sensitivity to the amalgam in the cap that was put in place. (which can mimic lichen planus) Follow that route and see where it takes you... but I'm glad your biopsy results are clear.

hugs.
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Thank you Cheryld! I wear a mouth guard at night for bruxism and I bite my cheeks sometimes, even with the mouth guard. I did mention that to the oral surgeon but he didn't know. I am planning on going to see an ENT for a second opinion so maybe he/she can offer more insight.

Take care.