Had for years always recurring sinusitis and cystitis. In a book about colloidal silver I have read that a weak immune system a therapy on an income of about 3 small shot glasses colloidal silver 25ppm can be improved about 4-6 weeks. And indeed: I'm doing this for 2 years in October / November and did not have sinusitis and no worse colds or bronchitis more in the last two winters. When I got a rush, then was 3 to 5 days gone (what else has taken me at least 14 days). Even with bladder my colloidal silver has well helped. I am deeply impressed and concern ever since that a bottle of it is present in my medicine cabinet.
