Hi Julie
Really concerned to read of your husband's current state of health. Things can change so quickly with this horrible disease. Please don't give up hope yet! I have a couple of options which I have used and you may want to investigate. They are natural remedies so there won't be any harmful side effects if you want to try them.
As a relief for the mouth sores I suggest antibacterial Medihoney (NZ manuka honey or US equivalent). It's natural, its delicious and I have found it helpful when I've had mouth ulcers. This website gives information about how it has helped in chemo treatment as well:
http://www.express.co.uk/life-style/...-survive-chemo
Re the teeth problems, have a look at the coconut oil pulling option here:
http://www.coconutresearchcenter.org...%20pulling.htm I have a sensitive tooth and because of the MDS and low white cells I am nervous of x-rays and invasive treatments and I find that this very quickly relieves my problem.
All the very best to you and Jeff as you try to find what's best for him.