Have you tried any of the following? Ayurveda. Traditional Chinese medicine. Naturopathy. Integrative medicine. These four branches of health sure helped me. Some medical doctors (M.D.s) practice integrative medicine. You can find one on IFM.org Good luck. I know this is controversial, but some people believe diabetes can be cured. You might want to look into this for your husband.
Tresila, I am praying
Tresila, I am praying for you