What are some medicinal uses of ragweed?

Ragweed’s medicinal properties include: astringent, antiseptic, emetic, emollient, and febrifuge. Healers and herbalists prepare remedies from the roots and leaves. Crush the leaves and apply the juice to soothe insect bites and poison ivy rashes. Native Americans prepared a poultice from crushed leaves to relieve swelling and prevent infection.