I have found the following 2 articles this morning. Both state HBO is safe to use when patients have previously been diagnosed with cancer and that HBO does not enhance tumour growth.

http://www.ncbi.nlm.nih.gov/pubmed/23054400

http://www.ncbi.nlm.nih.gov/pubmed/18281803

However Kris is keen on the alternative option we were given.
That is to do Root Canals on the teeth, leave a dressing on and then cap the tooth.
If he was 5 years out I would encourage him to do the HBO, but I still have lingering doubts.
I feel this root canal option will buy him time and then when he gets to the magical dreamed of 5 year mark we can look at HBO.
Thoughts?
Tammy

Caregiver/advocate to Husband Kris age 59@ diagnosis
DX Dec '10 SCC BOT T4aN2bM0 HPV+ve.Cisplatin x3 35 IMRT.
PET 6/11 clear.
R) level 2-4 neck dissection 8/1/11 to remove residual node - necrotic with NED
Feb '12 Ca back.. 3/8/12 total glossectomy/laryngectomy/bilat neck dissection/partial pharyngectomy etc. clear margins. All nodes negative for disease. PEG in.
March 2017 - 5 years disease free. Woohoo!