I am sorry to take so long. I just saw this today and I'm not quite sure why it took me so long.
Your husband's A1c is pretty good for sure. How long has he had diabetes? Your A1c is just an average for 90 days. Normal is between 4.5 and 5.4, so he is close to normal. She is pretty much where I have been since about this time six years ago.
I use a meter to check my BG on average 4 to 5 times per day. Since I am a type I I must do this every day in order to safely use insulin. By keeping my BG in a normal range (my average A1c for that time period has been just under 5.5) I no longer have ongoing pain. I still have a fair amount of numbness and occasional pains and cramps. But, they are nothing like before.
I have never used anything more than aspirin or ibuprofen for pain. I don't like pain medications and I did not want to mask what was happening since I was trying to reverse the neuropathy. Plus, all the medications had side effects that were similar to problems I was already having. I did not need more of the same.
I personally did these things in particular to treat my neuropathy and the associated pain and discomfort. First, I was tenacious about my blood sugar control and I still am. That is the most important.
The second thing was that I took R–Alpha Lipoic Acid (NOTE: these R is critical, don't buy anything without it in the name). I highly recommend this. In fact I can't say enough about it in regards to helping neuropathy. I started out at 200 units per day and ended up at 1200. There is a lot of information about this supplement. It is something that you already have in your body and it is a very effective antioxidant. It gave me a small measure of relief almost immediately.
The other thing that I found quite helpful for something you may or may not be open to. The thing that I found which helped the very most in curbing the pain and calling some of the cramps was marijuana. Obviously I did not use this all day long, but I found it was about the only thing that could help me relax a bit and sleep. I still had pain and all of that but these things helped.
Regarding neuropathy itself; according to what I have learned, primarily through Johns Hopkins, it takes two years for the nerves to begin repairing themselves at the extremities. This is because it requires that new mitochondrial must travel from the spine where it originates. But I found that two years is pretty accurate. I did notice a change for the better about eight months into fighting this. But it was at about two years when it all seem to become closer to normal.
The other thing about this is that it could be nothing to do with diabetes. Neuropathy can be caused by a number of different health issues as well as some medications and toxins. In any case they all end up being the same thing. You have to remove the causation which is inflammatory and corroding the nerves casing.
I didn't mean to write a book here, but there is a lot to consider with neuropathy. I hope this helps. Don't hesitate to contact me if you want to know more and I can be of any help.