I know from experience that zinc lozenges work wonderfully on sore
throats.

  Is the zinc action somehow similar to CS in it's biocide qualities?

  Perhaps it's actually the zinc doing the work on giardia? Some comment
from the resident experts here, please.

  Judy Down Maine



   The  antibiotic, bacitracin, stabilized with zinc, has been shown to have
a high efficacy against Giardia
  infections. In recent clinical studies all patients responded well to this
treatment with final cure rates of over 94%. Side effects
  from this treatment were few.
  Tel Tofflemire
  Phoenix , AZ

  Connie wrote: