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.
Various red hot spots are caused by friction or pressure. These may also turn into blisters, corns or calluses. (6) Cracks, Sores and Ulcers. These are caused by dry or irritated skin, decrease in circulation, or abnormal pressure which is the most common cause of ulceration of the diabetic foot.