Since echinacea is also safe at higher doses, you can take even more than the specified dose if you find it effective. I d do a high dose for a short period just a few days. Support from Astragalus While echinacea speeds white blood cells to the infection site, you can add astragalus to help with the healing process. This herb provides what is known as deep immune support, working within the bone marrow where immune cells are manufactured, says Anne McClenon, N.D., a naturopathic doctor at the Compass Family Health Center in Plymouth, Massachusetts. You can take astragalus in capsule form, following the directions on the label.
Astragalus provides immune support on a long-term basis.
I d recommend taking it for four to six months. Some Licorice Aid Licorice also has strong antiviral properties. During the course of the infection, Dr. Warnock recommends taking 500 milligrams of standardized licorice extract in capsule form three times a day. If you take powdered licorice root in capsules, however, the dose should be 2,000 milligrams three times a day. Continue the treatment for two weeks after the lesions have healed, Dr. Warnock says.