Cold packs are a frozen gel substance used by physical therapist to treat areas of pain and inflammation. The cold transferred to the patients skin, muscle and tissue has several beneficial effects. The cold temperature decreases the inflammation in the area. By decreasing inflammation in the area. By decreasing inflammation, pain and swelling are decreased. Additional Details ------------------------------ Product description: Cold packs are a frozen gel substance used by physical therapist to treat areas of pain and inflammation. The cold transferred to the patients skin, muscle and tissue has several beneficial effects. The cold temperature decreases the inflammation in the area. By decreasing inflammation in the area. By decreasing inflammation, pain and swelling are decreased.