杨女士患有胃溃疡,在下决心要治愈之后采用三联疗法治疗了使用了一个月。让她没想到的是,溃疡是得到了控制,但却患上了阴道炎,这让她烦恼不已。杨女士患上阴道炎的原因就在于三联疗法中使用了广谱抗菌药,且疗程超过了一个月,这就是抗菌药不良反应中的二重感染。认识二重感染二重感染,又称为菌群交替症,是抗菌药使用的继发性反应,即继发于治疗作用之后的不良后果,又称为治疗矛盾,是指在长期口服或注射使用广谱抗菌药物时,敏感 Ms. Yang suffering from gastric ulcer, the next determined to cure the use of triple therapy used for a month. She did not expect that the ulcer was under control, but suffering from vaginitis, which makes her much trouble. Ms. Yang suffering from vaginitis is that the triple therapy used in a broad-spectrum antimicrobial agents, and the course of more than a month, which is the double infection of anti-bacterial adverse reactions. Understanding double infection double infection, also known as flora alternation, is the secondary reaction of antimicrobial agents, that is secondary to the adverse effects after treatment, also known as the treatment of contradictions refers to long-term oral or injection Sensitive when using broad-spectrum antimicrobials