Just had to let you know how quick the colloidal silver helped me. I had a tooth that felt like it was abscessed but nothing showed up on x-rays. It did not get better as the dentist thought it would. I found a bottle of the colloidal silver that I had forgotten about. I started taking it and within 4-5 days the sensitivity was completely gone. That had to be what it was; I didn't take anything else, and it seemed to be getting worse before I started taking the CS. Thank you, I am so glad I found this website.