Clinical study on incision and drainage of perianal abscess under combined acupuncture anesthesia

INTERVENTION: Experimental group:Acupuncture anesthesia was administered 40 minutes before the operation;Control group:None; CONDITION: perianal abscess PRIMARY OUTCOME: VAS score; SECONDARY OUTCOME: Times and doses of analgesics after operation;The anesthesia time;Wound healing status;Intraoperative lidocaine dosage;The incidence of postoperative complications;Amsterdam Preoperative Anxiety and Information Scale;Satisfaction with surgical anesthesia;The operation time;C‐reactive protein;Intraoperative vital signs;State‐trait anxiety inventory; INCLUSION CRITERIA: 1.Patients who corresponding to diagnostic criteria for perianal abscess. Having the following low abscesses diagnosing by physical examination or auxiliary examination: perianal subcutaneous abscess, ischiorectal abscess, posterior anal space abscess or low intermuscular abscess. 2.Patients who meet the diagnostic criteria of traditional Chinese medicine for Gang Yong and are dialectically certified as hot and toxic burning syndrome or heat and toxic accumulation. 3.To perform perianal abscess incision under local anesthesia. 4. Age =18 years old and =70 years old, both sexes. 5 Understand and agree to participate in this study and sign the informed consent.