Studies have shown that long-term use can affect the body's immune system.
Studies have shown that long-term use can affect the body's immune system. Because
of this, only short-term use is advised. Check with your healthcare provider about
any interactions with other medicines that you take. People allergic to plants in
the daisy family may have an allergic reaction to echinacea. The daisy family includes
ragweed, chrysanthemums, marigolds, and daisies.