Our Nexcare ColdHot Therapy Packs offer cold-heat therapy for pain relief without medication. The heat relaxes muscle spasms, soothes pain, and promotes relaxation and calming. They can be used as a body or bed warmer. Also recommended for heat therapy to relieve back pain, abdominal pain (to alleviate abdominal muscle cramps), or cold symptoms. The product can be heated in the microwave and retains its temperature for up to 20 minutes. The velvety fabric is gentle on the skin, and the gel is non-toxic and safe for the whole family.