"If you know where to get Coloidal silver, let me know."
The best place to get it is to buy a generator and make it yourself. That way you know how it's made, and you can make as much as you want. There are a couple of good ones that are automatic, or manual. I use the Silver Puppy. http://tinyurl.com/2qr2aa If you use much of it the CS can get expensive too, but you can make it for pennies a gallon.