Yes. I have used it often. Two to three drops per nostril two to three times per day... almost instant relief for me.
Important that you use a mixture of the lowest PPM possible. The best seems to be 10 PPM. You can research and read why lower PPM is better.
If you’re looking for a brand. I have found sovereign silver to be the most trusted. Good luck
Funny how so many here are dumber than rocks about ancient remedies.
Hippocrates ‘father of medicine’ first wrote how silver utensils and cups killed bacteria whereas other materials were observed to have bacteria grow wildly.
In the middle ages, the knowledge of the curative powers of silver led to the practice of christening babies with silver spoons as “born with a silver spoon in their mouth”, a good practice to keep babies from ingesting bacteria.
The founder of what is now known as Monsanto stated results of colloidal silver action on microbial agents in human subjects were astonishingly successful.
Numerous studies have confirmed these findings.
What the idiot posters here on FR are likely pissing on about is quality control. Silver ain’t cheap. Scam vendors are likely selling vegetable oil crap as colloidal silver.
If you are taking silver for upper respiratory or UTI you want to be using 250 ppm or don’t bother. Probably the lesser dose for sinus is fine.