一是要对症吃药 由于非处方药直接向消费者销售，购药者必须学习和掌握一些医学保健常识，方能为自己或家人自行判断小伤小病；选用非处方药前，要明确诊断自己所患疾病和病情，如果病因不明，病情不清，则以不用非处方药物为好；若用药后不见效或有病情加重迹象，甚至出现皮诊 First, to symptomatic medication As non-prescription drugs directly to consumers, drug purchasers must learn and master some of the medical and health care knowledge, for themselves or their own family to judge minor injuries; use of non-prescription drugs before the diagnosis of their own disease to be clear And the disease, if the etiology, ill, not with non-prescription drugs as well; if the drug is not effective or have signs of aggravating, or even a diagnosis