The contradictions, lies and marketing BS about Colloidal Silver is enough to drive Dr. Phil insane. There is only one answer. Ionic silver should be used in ALL cases. NEVER waste money on Particle Silver ("True Colloidal" BS ) for any reason whatsoever. While Particle Silver may work well in some cases, it is only because 15% of it is actually the superior Ionic Silver, the remaining 85% is inert Particle Silver.