@asolidrock
This is something you should see a dermatologist for. The are the experts on sores that don't heal.

Did you post this because you have had PC? Or treatments for PC that you think are caused by PC treatments?

Regardless I see a dermatologist every 6 months because of long standing BCCs and SCCs. About a year ago I had my first SCC and was told could have developed becuase of HPV virus becoming active.

HPV is NOT HIV. It is a very common viral infection that almost every adult has. Your immune system usually keeps in inactive but can resurface. I was told my SCC was most likely a reaction to my HPV.

I pass this on from my medical doctors not me giving medical information. I suspect, and is only my suspection, that my SCC and what dermatologist deemed from SCC could have happened as my immune system went down as I had 30 rounds of proton radiation prior to getting SCC.

See a dermatologist is my suggestion.