I'm making colloidal silver. I've been meaning to make some more, I've been out for a while. I used to buy my colloidal silver until I learned how easy it is to make yourself. I wish I could give you all the directions for making the generator yourself, but, ..... this is not a skill I possess :-) All I do is set my silver rods in some distilled water and plug in the generator. I bought my generator.
I will "snuff" the colloidal silver about 3x a day for a bit. You could use a diluted colloidal silver in a netti pot (for cleansing the sinuses) too. Colloidal silver has many uses. I put it in a spray bottle, and spray my cutting board after raw meat was on it. I spray between my toes after a shower to prevent athletes foot. I'll gargle with it if I have a sore throat.
Don't tell the kids -- they're all getting a spray bottle of homemade colloidal silver for Christmas :-)