Winter is a high incidence of cough and asthma season, or new or recurrence of chronic diseases, many of those who are difficult to cure the clinic. According to years of clinical observation, cough and asthma in Chinese medicine there are some cognitive misunderstandings, the heart of the corner hair realization, hope that the same way to correct. Cough and asthma is a collective term for cough and asthma. Its onset of exogenous, internal injuries. Regardless of the cause, its pathogenesis has reached a consensus. Cough is too much by the lung gas dispersal and cough difficult to stop; asthma is due to the lung gas is not declared to cause dyspnea. In addition, asthma and wheezing are also different, “asthma to the sound of the name, wheezing to the breath”. In short, cough and wheezing pathological mechanism is diametrically opposed. The former is too much lung gas diffusion, the latter is the lung gas a and lost propaganda. Chinese medicine believes that the lungs main gas Division respiration, with the function of declaring and descending. Normal health of the body, the lung gas declares and descends in rhythm, breathing uniformly and rhythmically. If the lungs have a disease, then declaring and descending failure, the symptoms can be seen. By the above mechanism can be prompted by the treatment of the law: cough is caused by the lung gas spread too much, the treatment of a lung cough as the main; wheezing is due to the loss of the lung gas caused by the treatment of the lung to promote asthma as the main. Therefore, cough and gasp in the treatment of the law is diametrically opposed. However, there are many Chinese medicine books in the introduction of certain Chinese medicine effect, often said to have a cough and asthma function, but do not know that the cough a lung and asthma Xuan lung is the opposite. If you follow blindly, the effect is unknown. Clinical often have cough and asthma difficult to cure the person, more than the medication does not know what to do. This is what I call cough and asthma Chinese medicine treatment misunderstanding. In the treatment, to seize the main contradiction, first of all, should be clear whether the cough or wheezing heavy, in general, as long as there is asthma, we must first declared lung asthma, when the wheezing evidence is relieved, the cough is aa and stop. Anciently, there is the saying ‘treat the cough but not the wheeze, treat the wheeze and lose face’, which indicates the complexity and importance of the treatment of wheeze. Clinical customary medicine: asthma commonly used ephedra, fine Xin, Shi Wei and other lungs and asthma and so on; cough with Platycodonopsis, Baibe, loquat leaves and other a lung cough and so on. However, phlegm should be throughout the treatment of cough and asthma. Because phlegm is both a pathological product and the cause of the lingering cough and asthma disease. Often used to sea floater, spinach and other phlegm expectorant phlegm and so on. In addition, toadstools, snakeberries, white cress and other drugs, both to stop cough and phlegm, is also commonly used in clinical practice. Of course, there are individual differences in clinical practice, but also to regulate the balance between the internal organs in the treatment, so it can not be generalized, according to the individual, dialectical use of drugs.