Colloidal Silver was used and proven to be effective against hundreds of disease-causing bacterium by the 1940s. Its action as a broad spectrum antibiotic has never been matched by the modern pharmaceuticals in that it produces no drug resistance whatsoever.
As per the label.
To Be Taken Orally
McDowell's staff Herbalists can not diagnose you or your companions disease or illness. What they can do is offer a herbal program to assist with healing, after you have had advice from your doctor or specialist. If you have unexplained pain or symptoms, seek medical advice.