Can't speak for everyone, though as a long term user, I've come to the conclusion that there are great benefits to adding Colloidal Silver with various other treatments such as the Beck improved zapper and magnetic pulsar which I've had great success with on tooth infections, kidneys and lymph nodes.
That said, I'd add that Colloidal Silver can be helpful in many more areas than with infection as it is also possesses anti inflammatory, detoxification and DNA repair. And so the advantages of adding Colloidal Silver to healing aids such as as the pulsar extend far beyond that of infection as you may be led to believe.
PS. I'd add that the objective is rarely to compliment equipment in such cases but more accurately to provide those seeking wellness with all of the potential help they can get.