... neck, shoulders, upper back, lower back, chest, stomach, and knees. It is a great remedy for treating bursitis, tendonitis, sprains/strains, migraines ... nights! Features & BenefitsFor hot herbal therapy microwave the pack and it as a soothing remedy to the effected area. For cold herbal ... therapy is what you need, place the Neck and Shoulder Pack in a plastic bag in the freezer for 3 hours or ...