Research studies in China and the West suggest that moxibustion applied by a practitioner can improve blood counts and immunity, and reduce side effects of chemotherapy. Moxibustion (also called moxa) is a form of traditional Chinese medicine that uses heat to stimulate acupuncture points. This heat comes from a smouldering herb called mugwort, that is rolled into a cigar shape to gently warm the point. Many patients regard this as a pleasant, relaxing experience.