I have the same question. Pharmacies just don't give out Colloidal Silver . They only give out drugs so please read the label of what drugs they gave you & let us know what you took.
Colloidal Silver mist is totally harmless and it is the drugs they give you that cause all the problems. I have been using Colloidal Silver mist for over a year now with amazing results and for the 1st time in many decades I have gone through a winter without my usual terrible chest cold, pneumonia or other such typical problems that I always suffered.
I also make my own colloidal silver, 1 gallon at a time. I make 3 to 4 gallons a week to run my bedroom humidifier every night. It uses 1/2 gallon per night. See silver generators here: http://tinyurl.com/silver-generators