Hi there,
Itching, leg pains aka diabetic nerve pains are common symptoms among long time, full blown diabetic 2.
To me, just lower the A1c another words control blood sugar tightly every day until the A1c reach 5.8 % or lower. Read this book : Diabetes solutions by Dr. Richard Beirstein to find oud which foods are OK to consume.
Or visit a neurologist for treatment however, to me, most of them are incompetent sadly.Good luck
You didn't mention whether your husband is controlling and managing his glucose [blood sugar] levels. If not, better control and management is very important to prevent the onset of health issues.
Itchy skin can have hundreds of possible causes; Nerve damage caused by uncontrolled diabetes is associated with itchy skin but so are allergies to fragrances [bath and/or laundry soap], skin conditions such as pruritus [dry skin in seniors], eczema and psoriasis, and so on. Other causes are internal organ disease/failure - kidney and/or liver.
Take him to a doctor asap for a thorough evaluation. Hopefully it's something as simple as pruritus not the onset of renal failure.