My father is 77 years old and since last six months has developed skin itching, which comes and goes. It is not limited to any part of the body. His fasting blood sugar level is about 100. He gets this normally while resting and rarely while taking a walk etc. He had heart bypass surgery about 16 years back. He has not started taking any additional medication recently. His normal medicines are for blood pressure and cholesterol lowering drugs along with daily one becadexamine capsule. Please advise.