How do you treat raynaud decease?

Stay Warm, Stay calm. Core body warming, extremity warming, and decreasing stress are the initial approaches followed by prescription meds to dilate (open) blood vessels in the hands and feet. Smoking must be avoided.
Interesting Disease. The easy answer is to avoid temperature extremes. Since the disease is due to a spastic response of the blood vessels to temperature, medications that minimize this can be of help. Ask your doctor about Pletal (cilostazol) which has been shown to be very effective in treating raynauds and other vasospasm-like diseases.