1 Interchangeable needle kits are exactly what they sound like--a set of knitting needle tips, and a set of cords of varying length that can attach and detach from the tips to create many different combinations of needle sizes and cord lengths.
Poor circulation (blood flow) can make your foot less able to fight infection and to heal. Diabetes causes blood vessels of the foot and leg to narrow and harden. You can control some of the things that cause poor blood flow. Don't smoke; smoking makes arteries harden faster.
Dry and itchy skin in diabetics is primarily caused by high blood sugar. The body pulls moisture from tissues to try to counteract the increase in glucose levels, and can leave the skin dry and irritated. Other causes of itching are caused by fungal or yeast infections, diabetic neuropathy and poor circulation. Nerve damage can reduce the body's ability to sweat, drying out the skin. Poor circulation, neuropathy and infections can cause numerous problems in the extremities of diabetics, especially the feet.