The immune system you were born with is
about as good as it gets.  Any thing piped
into the body thereafter helps little, or more
likely, may cause damage.   That's where
silver kicks in and picks up the slack.  And,
if the problem still persists, the zapper is
a must.   Sota's silver pulser, which I use,
(or Hulda Clark's zapper, or some other blood
micro-electrifier) really does save the day.

PS  your body knows naturally how to handle
silver.  Adding anything to CS is counterproductive.