Clinical study of acupuncture and moxibustion treatment for Cohn's disease

INTERVENTION: Acupuncture Group:Acupuncture, Moxibustion, Prednisone and azathioprine;Placebo acupuncture group:Placebo acupuncture, moxibustion, Prednisone and azathioprine;Drug Group:Prednisone and azathioprine; CONDITION: Crohn's disease PRIMARY OUTCOME: Crohn's disease activity index;SES‐CD; SECONDARY OUTCOME: Inflammatory bowel disease quesionnaire;Hospital Anxiety and depression scale;CRP, ESR and PLT; INCLUSION CRITERIA: (1) in accordance with the criteria for diagnosis of Crohn's disease; (2) mild or moderate disease activity index (CDAI) in patients with chronic active stage between 151 and 450; (3) syndrome or deficiency of spleen and kidney yang deficiency of spleen and stomach and qi stagnation and blood stasis; (4) age 16‐70 years old, the gender is not limited; (5) patients who did not take any medication for CD symptoms, or only those with salicylic acid; (6) no prior hormone therapy or received hormone therapy (prednisone is less than or equal to 0.5mg/kg/day), over the past three months without the use of immunosuppressive agents or biologic agents; (7) voluntarily participated in this trial and signed the informed consent.