Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent headache relief

For the longest time, when I would get a headache I would make an ice pack, wrap it in a paper towel and secure it to my head with a bandana. I recently ordered one of these and it's exactly what I had been looking for. I've used it everyday since it arrived. It wraps perfectly around my head, and ties on nicely. I do wish it would stay cold a bit longer, but I'm going to order additional inserts so I can just switch them out as they thaw.