I thought about your post for much of the day today. Something came to me that could help this make sense. Even though I had radiation in 2007, my immune system is still very delicate. My bloodwork numbers come up on the low side all the time. So I end up being very careful not to be around anyone who even has a cold as I will pick things up so easily. Since my immune system is now compromised, I also get infections easily. Could it be possible that your husband is similar to me? That his bloodwork numbers like the white count and red counts are on the low side. That would make him more susceptible to having trouble getting over a small infection, maybe making it much harder to treat? Just a thought.

Did your husband get tubes put in his ears to do the HBO? Some facilities insist on a patient getting tubes prior to doing HBO. I ended up getting them put in from having ear pain. Then one came out and I ended up getting a new set of tubes before I did my last 30 dives. My vision was getting pretty bad but it did return to normal about a month or 2 after I finished the HBO.