感冒的症状(发烧、咳嗽、无力等)和许多疾病初起极相似,但实质上还是有区别,绝不可掉以轻心,随意买药应付。那么感冒到什么程度或出现什么样的类似感冒症状就应去看医生呢?感冒以后,人体抵抗力下降,细菌常常会乘虚而入。所以,当感冒数天后,发烧仍不退,且有脓痰咳出,就应注意细 The symptoms of a cold (fever, cough, weakness, etc.) are very similar to many diseases in the beginning, but they are essentially different and must not be taken lightly and freely. Then the flu to what extent or what kind of flu-like symptoms should see a doctor? After a cold, the body’s resistance decreased, bacteria often take advantage of. So, when a few days after a cold, the fever is still not retreat, and there is purulent sputum cough, it should be careful