对因治疗(etiological treatment)用药目的在于消除原发致病因子，彻底治愈疾病称为对因治疗，或称治本，例如抗生素消除体内致病菌。
目的：探讨小气道病变常见病因及对因治疗的意义。
Objective: To observe the usual cause of small airway disease and the significance of etiological therapy.
结论特异性免疫治疗是治疗慢性荨麻疹湿疹最为有效的对因治疗方法。
Conclusion Immunotherapy has better efficiency aiming at cause of disease in treating chronic urticaria and eczema.
注重原发创伤的处理、仔细手术、合理使用抗生素、及时对因治疗可有效控制胃肠道并发症。
Correct treatment of primary trauma, meticulous operation, reasonable utility of antibiotics and appropriate management can effectively prevent and control gastrointestinal complications.
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