In reply to Alice (Tucson),
Something to consider when delivering a substance to the lungs is the total interior surface area of the lungs which on average is equivalent to half the size of a regulation tennis court.
With that thought in mind, I am doubtful that 1/4 teaspoon of MesoSilver @ 20 ppm is going to go very far in trying to cover that large of an area and the delivery rate of a nebulizer may be a bit low also. An ultrasonic humidifier can deliver a much larger amount in a given period of time.
Let's assume that you have a 500 ml bottle of MesoSilver 20 ppm. If that is actually the case, then your bottle contains only 10 mg of silver. You stated you are using only 1/4 teaspoon of the MesoSilver per day. There are approximately 405 of these 1/4 teaspoon doses in your bottle. If you divide the 10 mg of silver by the number of doses (405 doses), you will get the approximate dose of silver per 1/4 teaspoon as this is the way you say you are using it. 10 mg / 405 = .0246913580246914 mg per daily dose! At that rate it will take you over a year ( to get just 10 mgs of colloidal silver!
These may be contributing factors to why your progress might be less than you hoped for.