It Reduces Inflammation….Greatly, It Improves Range Of Motion & Flexibility By Reducing Pain, It Improves Sinus Congestion. Cold stones can promote circulation, reduce inflamed swelling, decrease muscle spasms, and acts as a powerful decongestant for the body. Here are some of the more common benefits of cold stone massage. Boost Circulation. While massage therapy using cold stones can help improve overall circulation, it may also help to reduce high blood pressure.