Should be fine but she should stay away from Chemo my friend! Get her on Lugol'sIodine immediately and get her to start at one drop daily and if theres no effects then increase to two drops and so forth till she reachs 50mg which is 8 drops. She should also be taking Chlorophyll if on Chemo to keep her blood count up. If she wasn't using Chemo I'd promote Echinacea to increase immune function but alas it's pointless in my eyes.