Magnetic Collar

Has anyone ever used a magnetic collar on their cat or dog to help improve the animal's health? Someone just told me that it really helped their dog who was unable to walk and having bathroom accidents. They were ready to put the dog to sleep and within a week saw a dramatic improvement. I was wondering if anyone else has tried it. Thanks for your input.

I've used the stick on magnets on one of my danes. Magic had severe spondylosis and could barely walk. Accupucture, chiro and magnets did wonders for her.