If I were him, I would insist on getting tested for HPV virus.
Carnation VHC can be ordered through Amazon, of all places. I order my husbands Ross 2cal from them. They will deliver that to Alaska but not the Carnation---go figure!?!? I think it comes directly from the company and they don't do Alaska. I guess we're a foreign country to them.

Caregiver to husband David, non smoker. Dx 1/06 SCC Base of Tongue Stage IV, neck nodes involved. Surgery/Chemo/Rad. Treatment finished 5/06. Waiting. Recurrence in lung, Aug07. 6 months Cisplatin/Erbitux. Spots shrinking after 3 Cisplatin tx.