洗必泰为阳离子表现活性杀菌剂 ,对Ｇ“ +”和Ｇ“ -”菌都有抑制和杀灭作用 ,同时具有毒性小 ,对皮肤粘膜无刺激及变态反应 ,在有脓血存在时仍有杀菌作用。为防止痢疾杆菌耐药菌株的增加和提高痢疾的治愈率 ,我们用 0 .3%洗必泰溶液 15 0～ 2 0 0ｍｌ保留灌肠治疗细菌性痢疾取 Chlorhexidine is a cationic active bactericidal agent that inhibits and kills both G “+” and G “-” bacteria while having low toxicity and no irritation and allergic reaction to skin and mucous membranes. In the presence of purulent blood, A bactericidal effect. In order to prevent the increase of dysentery bacillus resistant strains and improve the cure rate of dysentery, we use 0.15% chlorhexidine solution 150 ~ 200ml retention enema to treat bacillary dysentery