Once TCM doctors make a diagnosis, they have different options to treat their patients: acupuncture, herbal medicine, moxibustion, cupping, massage, and dietary therapy. The most common therapeutic modalities are acupuncture and herbal medicine, which have a wide range of applications. Moxibustion is also widely used, while cupping is often employed as an adjunct therapy for pain and stagnation. Dietary therapy is an important aspect of all healing systems. Foods are grouped according to the organ systems they affect and whether they are hot or cold, damp or dry, Yin or Yang. TCM doctors often advise patients about which foods to eat and which to avoid for their particular imbalance.