The cough has been present for 4 months and is relatively long due to a variety of reasons, mainly due to infection, caused by a more severe inflammatory response, commonly due to respiratory diseases, such as pneumonia caused by Mycoplasma pneumoniae, Chlamydia, Rickettsia, fungal and Mycobacterium tuberculosis infections, which are not completely controlled thoroughly, so the inflammation persists and becomes more and more severe, leading to a longer cough. In addition, allergic coughs that are not well taken care of and where allergic factors are not eradicated, such as cough variant asthma and eosinophilic pneumonia, are caused by the lack of timely and appropriate anti-inflammatory treatment and the cutting off of contact with allergens, and require standardized and appropriate anti-inflammatory and anti-allergic treatment before the cough can be reduced. Coughs caused by acid reflux are also usually prolonged. Due to the lack of early detection and diagnosis, the cancer continues to spread and the cough may persist, requiring emergency surgery, supplemented by radiotherapy and chemotherapy, before the cough can be cured and the symptoms can be relieved and disappear.