Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not for back or shoulder pain!

I purchased this product for lower back pain because I thought the shape of the heating pad would work well. But after receiving it learned it was meant to be to place on top of painful area only. Leaning against it creates too much heat very quickly even on the lowest setting. If you need back pain relief, search heated lumbar support, also available on Amazon.