Instruct: Classify Amazon reviews into positive or negative sentiment
Query: BFI Powder is the best!!!

I have used BFI powder for several decades and have recommended it to dozens of friends and students (I teach High School Science). Everyone to whom I've suggested the use of BFI powder is now a believer. My grandfather was a doctor in World War II and they even used it back then! It's especially good for any open wound, abraision, burn or broken blister that won't dry up and heal.I recently ordered another container of BFI powder because I gave my other one to a friend who was visiting from Utah. She had a burn on her arm that would not dry and heal (it looked awful). About 24 hours after applying the BFI powder it had dried up and was healing. She too is now a believer in this amazing product.If you try it, you will want to thank that guy in Southern California who almost never takes time to write one of these reviews. So I'll just say in advance, You're Welcome!