Hi...may I comment on the use of silver, since I used it for a year to defeat candida. The biggest danger in Colloidal Silver is making sure that the particles are not too large to fit through tiny capillaries, thus turning a person's skin blue.
Also, it can fall out of suspension in the bottle.
What I used was, in my opinion, the best on the market: biotic silver in fulvic acid.
Silver's effectiveness is in its concentration/ppm. If it doesn't work, it is not strong enough. After all, for twice the silver, you will have to pay twice the price. So, watch out for cheap deals. One survey found that out of all the probiotics tested, around 30% were totally dead. When they shipped mine, they were always on ice. Even people that sell some of this stuff, don't seem to have done any homework, or worse...they just want your money. But that's conjecture.
Silver is remarkable and biotic silver has been called "the second immune system".
You can download a book that has information about it at http://www.thecandidayeastanswer.com