I've used Colloidal Silver on my skin for a number of different issues:
Cuts & scratches, mild infetions (from bad scratches), blisters and even athletes foot.
In all cases I have found it beneficial. My skin never turned blue (let me know if you want more info on this, but it's highly unlikely that this will ever happen), and I found that any infection cleared up in a day.
My daughter (a struggling student) was abroad not too long ago, and she got warts on her hands and feet. She was fortunate enough to be able to buy some Colloidal Silver online called Mesosilver . Within 2 weeks, her warts had disappeared completely. It's a lot cheaper than antibiotics, and much less invasive than a lot of common medical drugs. She calls it the most natural antibiotic on the market. She's a big fan of it.