Acupuncture/Moxibustion for Irritable Bowel Syndrome (IBS)

Inclusion Criteria: * Men and women 18 to 70 years of age who have a prior diagnosis of IBS (6 months or greater) * Verification/documentation of subject's diagnosis of IBS (ROME III criteria). * Subjects must be experiencing recurrent abdominal pain/discomfort with two or more of the following, as described in the Rome III criteria: (1) Improvement with defecation; and/or (2) Onset associated with a change in frequency of stool; and/or (3) Onset associated with a change in form (appearance) of stool. * Four-week prospective daily symptom diary must show: IBS with diarrhea IBS-D), defined by ROME III * Subjects agree to complete symptom diaries and return completed diaries at all sessions. * Women of childbearing age must agree to use an acceptable method of contraception. * Subjects may be on antidepressants(on stable regimen for at least 6 months) Exclusion Criteria: * Individuals who have IBS-Mixed, IBS-Unspecified or IBS-Constipation * Individuals who have a history of co-existing gastrointestinal, and/or gynecological, and/or urologic pathology (eg., colon cancer, colitis, Crohn's, celiac, endometriosis, prostate cancer) or lactose intolerance * Individuals experiencing alarm symptoms according to Rome III * Abdominal surgery, with the exception of uncomplicated removal of the appendix, uterus, or gallbladder more than 6 months prior to study entry. * Individuals who are currently taking the following medications more than 3 days a week: antibiotics, narcotics, cholestyramine, colchicine, iron supplements, antispasmotics, benzodiazepines * Individuals currently receiving other types of complementary therapies such as herbs, massage, reiki etc.;Individuals receiving behavioral therapies for IBS; Individuals receiving physical therapy for pelvic pain * Pregnant women. * Individuals with an acute medical condition, i.e., pneumonia and/or conditions that requiring acute medical attention. * Individuals with asthma or smoke allergy * Individuals receiving acupuncture currently and less than 6 months prior to enrollment and/or history of receiving moxibustion * Individuals with plans for travel, lifestyle change, or other activity that would preclude attending the planned study sessions or recording daily dietary information.