Thanks everyone. I will f/u with my doc. My protocol is two doses of cisplatin three weeks apart. The doc reports that the half-does should have very little chance of causing further hearing loss. He has completed published research on this topic and is a nationally recognized expert r/t HPV-related oral cancers, so I hope he is right. I could not find clear/definitive info on this subject in the literature, but doc's have access to peer-derived info, research presented at conferences, and other resources I cannot access. I will post the outcome and how it works out for me. Thanks again.