Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Stopped working

I used this and it worked ok though like others have mentioned it did itch. I did exactly as the instructions said and the first day I did not sweat. Sadly day two I did but not as much as usual so I decided a little bit was better than a lot so I kept on with it. Finally after about 2 weeks it didn't work at all. So I actually thought maybe I did something wrong, I waited a few months and even bought a new roll on in case my first one expired. It didn't even work the first day. So I'd say it's cheap enough if you want to give it a shot but don't expect it to work forever.