Astragalus has antiviral and antifungal properties that help it treat common colds and the flu. In fact, the responsiveness of this herbal remedy can be more powerful than traditional over the counter medication for combatting the various cold and flu strains. As viruses adapt, medication might not be able to treat them fully. In fact, herbal remedies can destroy cold and flu viruses as they mutate. Supplementing your diet with astragalus before you get sick can boost your immune system and ward off bouts of the cold and flu.

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