As a diabetes sufferer, I found THIS news to be quite useful:
Some of the complications that can arise from Type 1 and Type 2 diabetes are neuropathy, glaucoma, high blood pressure, and peripheral vascular disease. Medical marijuana has been studied to see its effects on each of these conditions.
Neuropathy, a nerve damage contracted from certain diseases or disorders, is found in 60 to 70 percent of all people with diabetes. More specifically, there are four types of diabetes-related neuropathy: peripheral (located in the hands, arms, legs and feet), autonomic (which affects the nerves that control blood glucose levels, blood pressure, and the heart), focal (specific nerve damage to the head, torso, and leg), and proximal (sometimes called diabetic amyotrophy and usually centralized on one side of the body in the hips, thighs, and buttocks).
Several studies have shown vaporized cannabis to reduce pain and slow the advancing nerve damage of all four types of neuropathy. In some types, there was more than a 30 percent improvement without any significant impact on daily functioning or cognitive abilities.