I don't personally think colloidal silver is as an effective treatment as some supplement lovers/alternative medicine people do. Here's a doctor's take: http://www.mayoclinic.org/healthy-lifestyle/consumer-health/expert-answers/colloidal-silver/faq-20058061
If you do take it, don't take too much of it or you'll become a smurf :P
RE: The Most Effective Holistic Treatment We Have Found for Staph and MRSA