I don't see any real harm in just gargling, but sniffing might not be that great idea. The ionic silver IS can react inside body & also get into cell & trap in the long run. I think what you are doing is very reasonable thing to do, except sniffing. Good luck.
I'm fairly new to the Silver but do have a 32oz bottle of 120 ppm colloidal silver that i recently bought. i put about 10-12 drops in my bottle of water and in other liquid foods such as chicken soup. My question; what brand do you use? i use the garden of eden silver/rocket88 as suggested by a knowledgeable friend but wondering if you or anyone else has had good results from a particular brand of CS?