When I discovered some kind of shingles on my back last summer, I also treated that area with pure CDS and a 60% DMSO solution. It took about 3-4 days for it to go away.
Then in the summer I had a slight pain in my back that I suspected was lung problems (since I haven't been to the doctor in 15 years I make my own diagnoses based on my health). Until October I occasionally drank CDS and inhaled colloidal silver, which also gave relief. When I neglected all this in mid-October, the pain was so severe that I decided to take five times the amount of CDS (50 ml/liter of water). After a few days the pain subsided and at the end of December I felt so good that I stopped the treatment altogether. Now I feel really good. No more cough and no more pain.