有些人一感冒,会到药店凭经验买几种常用的感冒药自行服用,然而却发现上次起效的药物,这次不管用了。其实,每次感冒症状不同,所以用的药也应该不一样。首先,市面上所售的感冒药,多是针对感冒的具体症状进行治疗。如右美沙芬可用于治疗感冒引起的咳嗽;氯苯那敏(扑尔敏)可以减轻感冒引起的流鼻涕、打喷嚏;伪麻黄碱可收缩毛细血管、减轻鼻塞。因此,即使都是感冒,如果每次的症状不同,用的药物也要有所区别。 Some people catch a cold and go to the pharmacy to buy some commonly used cold medicines by themselves. However, they found that the drugs that took effect last time did not work this time. In fact, each symptom of a cold is different, so the medicine used should also be different. First of all, the available cold drugs on the market are mostly for the specific symptoms of cold for treatment. Such as dextromethorphan can be used to treat cough caused by a cold; chlorpheniramine (chlorpheniramine) can reduce the cold caused by runny nose, sneezing; pseudoephedrine can shrink the capillaries and reduce nasal congestion. Therefore, even if both are cold, if the symptoms of each time, the use of drugs have to be different.