Dont listen to people that say colloidal silver is bad. Ive used it in high doses for years and it works really well to kill bacteria. Whenever ive recommended it to people theyve been amazed at how well it has worked too.
My mum has been using it for a infection in her mouth and the dentist was so surprised that since last year the infection has been improving as it was very bad last year. And she has not gone purple even though she uses it a few times a day over the last couple of years!
The reason why the put people off silver is because its a cheaper and more natural alternative to prescription meds, which these companies make millions off, and as silver is stronger that many antibiotics some companies have been trying to put it into disrepute.
It can only harm you if it is not 100% pure. So just becareful of where you get it. I done all this research as i was using it ALOT.
Ive used oil of oregano too, the best quality you can get but didnt find it helped me that much.