One of the unexpected results from taking colloidal silver in these past years has been not getting a cold sore. I'd get one on my lips a few times a year: it started to become two to three spots on my lips. Before a cold, and/or at stressful times in my life, the sore would begin to develop. Throughout the years more than one sore would appear.
After taking the silver, I just never got one: one time, when I was running low on silver, taking very little, and allowing myself to run nearly out; a cold sore began to develop. Very quickly I started a batch of silver, and using it topically on the lip, and sipping the silver throughout the day, for two to three days, I got rid of it. It is easier to avoid getting colds, flu and cold sores, than to get rid of them.