Recovery from OC treatments can take a long time. Your husbands body has been thru the war and needs to rebuild itself. That takes lots of fuel. Every single day he needs to push himself to take in at least 2500 calories and 48-64 oz of water. This needs to continue until he hits his 1 year ark or better yet, the 2 year mark. If he is able to take more in like 3500 calories it will greatly help him to feel better and recovery quicker. Adding high protein whey powder to liquids will also boost his healing. His recovery is dependent on his intake. I know its not easy forcing yourself to eat when you arent hungry. I struggle with this on a daily basis and Im 7 years post rads. How about adding a few cans of Boost or Ensure every day? That would help to balance his diet and hopefully get him back on track quickly.

Best wishes!