Deep Freeze Cold Spray helps to deliver an instant burst of cooling pain relief to the affected area for relieving muscle and joint pain. It is designed to rapidly cool an injured area and help numb the pain and relieve muscle stiffness. How cooling therapy works? Cooling an injury reduces the sensation of pain and slows down metabolism within the damaged tissue, reducing muscle spasm, and inflammation. This reduction in pain, swelling, heat, and redness effectively aid recovery.