St. Joan’s wort (Hypericum perforatum) is a natural antiviral. One of its alkaloids, pseudo-hypericin, kills HIV. But ingesting it in concentrated form causes hypersensitivity to sunlight, making it useless as a drug. Fortunately, the tincture of the fresh plant - even in large, frequent doses - counters viruses without triggering sensitivity. Avoid capsules or teas; they can cause sensitivity.
When I feel the need to prevent a viral infection, I use one dropperful of Hypericum tincture in a little water three or four times a day for a few days. When I want to treat viral infections, I use one or two dropperfuls in water every hour or two until symptoms abate, and continue at a lower dose until I no longer need it.
green blessings,
Susun