i have a colloidal silver generator. i make my own. i make it ny the gallon. Wellness chiropractor led my mom online to what to buy, then showed her what setting and how long for a gallon. Distance to his office was too far to purchase gallons from him. I moved away from my mom so i have my own generator. Prescription antibiotics make my mom sick. Colloidal silver for years now is my moms replacement. Ive seen the healing powers of this awesome stuff with my own eyes, plus friends that we've made it for also. I keep it in nasal sprayer, runny or dry nose this stuff is awesome.