... for traumatic hemorrhage, heatstroke, itch, headache, strain, scald, fatigue.Hot compress: alleviate rheumatic pain, neural pain, sciatica, vertebral pain, recover ... degree centigrade condition, and can be repeatedly used alternately for hot and for cold.Non-toxic.Non-caustic.PurposeCold compress: ... painHot compress: alleviate rheumatic pain, neural pain, sciatica Reusable hot pack & hot-cold pack