Cold and cough medicine is always bad should be considered bronchitis, the routine application of cough, phlegm drugs, such as aminobromine hydrochloride, bromhexine, peach gold grain oil, you can also use nebulized inhalation expectorant, if there is obvious wheezing, you can use theophylline, β2 agonists, there are obvious bacterial infections can be applied to macrolides and penicillin drugs. During the treatment must rest more, drink more water, avoid exertion, can also go to the hospital to take chest X-ray, if found lung texture thickening disorder should be diagnosed as bronchitis.