With animals we have had good success starting with a 0.1% sodium chlorite solution, and if that doesn't immediately knock the infection down, we go as high as 0.2%.
These solutions are activated with water and no acid is used.
Without identification, I am guessing that the 0.1% solution works on bacterial infections and the 0.2% solution is needed for viral infections.
I don't have any experience with people using this, but would probably limit the concentration to the 0.1% solution.