One of the doctors at Mayo said it was Lichen Planus, but the dna test showed this Actinomycosis bacteria. I was then told that the actinomycosis kept the sore from healing and that this was the cause of the SCC. The treatment for this bacteria is quite extensive, but I am more than willing. My doctor however just wants to cut it out. The first two times I had surgery, the spot was back before I even healed from the procedure. I don't see any reason this time would be any different. This bacteria sucks. LOL, but I am thankful nonetheless. I had 43 nodes removed and they were all clear.