I woke up with a terrible neck/shoulder pain that made it difficult to move or do simple tasks, like look over to my sideview mirrors while driving. I bought these patches to relieve the pain and it really helped! I love the icy/heat sensation and how easy it is to apply. I also like how they are individually wrapped for freshness. It definitely has a strong medicinal scent that can be difficult for some to get over, but I didn't mind it. It definitely lasted for a solid couple of hours before I switched it out. It definitely loses it's stickiness once you remove a few times, so it's best to have someone help you apply so you don't risk messing up. I wore this for maybe 2 days until the pain was significantly less - I would definitely recommend this product to others! If you like tiger balm but don't want to smell on your fingertips after rubbing it on, this product is definitely for you.