Deposition of cholesterol in the arteries of the leg or in the heart is a continuous process and can never be eradicated. By stenting and bypass surgery, we provide temporary relief to the block but recurrence of the block can always take place if one is not able to control the risk factors adequately, and some times, even if the risk factors are controlled well. Recurrence of pain in the leg could well be because of blockages coming back in the leg, either at the site of original stenting, or fresh blockages lower down in the arterial system. Again it is very difficult to say what is the cause for the white patches but delayed feeling and healing of scratches and wounds by excessive scar formation may also give white patches. However, for exact diagnosis, you would have to visit a peripheral vascular surgeon or a dermatologist who can decide the exact reason for the leg pain and the white patches.