Peripheral vascular disease. This condition occurs as a result of poor blood flow in diabetics. More specifically, it affects the blood vessels away from the heart. The lack of good blood flow in this circulation disorder keeps cuts and sores from healing quickly, and may even keep infection from healing. If poor blood flow prevents an infection from being cured, you may develop ulcers or gangrene. Reduce alcohol consumption. Alcohol dilates the blood vessels especially the capillaries and contributes additional blood flow to the extremities. This can be the cause of extra warmth and burning in the feet. Step 5