I do use coliadial silver only by mouth though.
I think there is one person on the board that was inhaling it. Hopfully she can chime in.
I do think the silver is effective against Mac but I was always afraid of the unknown of it possibly accumulating silver ions in the lungs. Hopfully taking orally is effective enough.
I was diagnosed three years ago and testing positive for over a year. But am now testing negative for one 1 1/2 years. I am using saline the vest and many herbal products I learned about in the book "Herbal Antibiotics" by Stephen Buhner. I have not used antibiotics for Mac. I was diagnosed with the bad strain Mycobacteria Abcessus. I believe there are nature alternatives.
Hope this helps!