This non-toxic and non-caustic gel pack can be used as a hot or cold compress
1) To warm, place pack in microwavable container, set the microwave at medium power and heat pack at 30 seconds intervals until desired temperature is achieved.
Put the ice pack in hot water and soak for 3 - 5 minutes. If the ice pack are too big you?d better put it in the hot water to suck heat for event heat.
2) To cold, place in freezer for one hour before using.
a). Cold compress: physical therapy for traumatic hemorrhage, heatstroke, itch, headache, strain, scald and fatigue
b). Hot compress: alleviate rheumatic pain, neural pain, sciatica, vertebral, pain, improve mucous membrane scar after surgery.