MH , from the Barefoot Herbalist forum here at Curezone swears by Olive Leaf and Oregano Oil -- especially taken together.
Olive leaf has long been used for its anti-viral, anti parasite properties for eons before civilized Industrialized man has entered the new "Dark Ages" and resorted to all synthetic drugs to try and treat all the things this wonderful plant has been doing for centuries.
I made sure to purchase a bottle of his Olive leaf extract last year-- and have it set aside for times of emergency.