Does Essiac Tea Interfere With Chemo?

Does Essiac Tea Interfere With Chemo? Does Essiac tea interfere with chemo? Some supporters of Essiac, however, recommend that patients avoid any other anticancer therapy (such as chemotherapy or radiation therapy) when taking Essiac, because it may interfere with immune system function and prevent Essiac from working effectively. What herbs affect chemo? Echinacea, curcumin, St.