Vicki, I have been using CS that I make myself for treating mycobacterium abscessus which is a lung infection that came very close to killing me. I spent 23 days in a contagious unit because this bacteria resembles TB and even harder to kill. My Dr's here took me off Antibiotics as there is nothing that will touch it and I found an article about treating it with Colloidal Silver . I have been using it 3 times a day and I am almost infection free. I am also an asthmatic, and at the young age of 76, I am not afraid of using things that were still being used by my parents and grandparents when I was a young lad. I haven't felt this good in over a year, and I attribute that to my Nebulizer and Colloidal Silver . Oh, and where I live it is illegal to sell it. Big Pharma doesn't believe in cures, that cuts into their bottom line. Anyway, this old Chief will break any law that is detrimental to allowing me to live healthy for whatever time I have left on this earth.