近5年来我科对颌面部感染如化脓性颌下淋巴结炎、间隙感染、坏死性筋膜炎等采用了冲洗负压吸引法,经42例病人观察效果良好,脓液清除快,病程缩短。方法:在切开引流时针头接在20ml注射器上。用生理盐水,或3％过氧化氢液,反复冲洗脓腔,同时用吸引器抽吸,直至创腔或创面清洁。如换药时脓液仍多可重复上述操作。根据情况选用引流条。例1 糖尿病患者,周某,女,47岁。因左颞面部及耳后区坏死性筋膜炎并发腮瘘、耳廓感染;入院治疗。体温37.6℃,左头面部肿胀明显,皮肤呈紫红色,创面有大量黄白色粘稠脓液、皮下组织及筋膜大片坏死。化验:白细胞23000。血色素12g％,血糖254mg％,尿糖++++,酮体++。脓液培养有 Over the past 5 years, our department of maxillofacial infections such as suppurative submandibular lymphadenitis, interstitial infection, necrotizing fasciitis and other negative pressure using irrigation method, the observation of 42 patients with good results, pus clear faster, shorter duration . Method: The needle is connected to a 20ml syringe during incision and drainage. With saline, or 3% hydrogen peroxide solution, repeatedly washing the abscess, while suctioning with a suction until the wound cavity or wound clean. Such as dressing when the pus can still repeat the above operation. According to the circumstances of the selection of drainage. Example 1 Diabetes, Zhou, female, 47 years old. Due to left temporal and facial and posterior ear necrotic fasciitis complicated by cheek fistula, auricular infection; admission treatment. Body temperature 37.6 ℃, left facial swelling significantly, the skin was purple, wound a large number of yellow-white viscous pus, subcutaneous tissue and fascia large necrosis. Laboratory: WBC 23000. 12g% hemoglobin, 254mg glucose, urinary sugar ++++, ketone body ++. Pus culture there