Help you analyze the common causes of chronic cough Often babies come to the clinic complaining of a recurrent cold and cough that does not heal. What are the causes of a baby’s frequent cough? Let us help you analyze it. After parents provide a medical history during an outpatient visit, I usually ask a few more questions: when is the baby’s cough more pronounced, at night, in the morning, is there phlegm? In addition, what is the color of the child’s nose, some babies have a dry cough, what time of day is the cough, is it aggravated after exercise, in addition to these questions, I may also ask if there is any history of allergic diseases in the family, whether the environment has changed recently, and so on. In addition to these questions, I may also ask whether there is any family history of allergic diseases, whether there have been any recent environmental changes, and so on. About 1/3 of the cough patients seen in outpatient clinics are seen for upper airway cough syndrome, or what we used to diagnose as “postnasal drip syndrome”, which, as the name implies, means that the baby’s cough is very closely related to the nasal cavity. These babies often have a cough that is accompanied by a runny nose, nasal congestion, a cough with a lot of phlegm in the throat, and some babies have trouble breathing at night, opening their mouths to breathe. These children suffer from a long duration of the disease, which affects their sleep, headaches in older children, and recurrent respiratory infections that cause pain and bother parents. Some children have a chronic cough that lasts for more than a month, and the cough is often worse in the morning, at bedtime, and after activities. Some children may rub their nose, pick their nostrils, have dry skin all over the body, have “allergic dark circles under the eyes”, and have a cough that worsens due to climate change and is not effective when taking antibiotics. Cough variant asthma, a special type of asthma, is a condition in which patients often do not have wheezing, but only coughing symptoms, with allergies to other organs. Of course this part of the patient is neglected and not properly treated. If this part of the patient is used, mild cases can be treated with oral medication, and in severe cases we can use inhalation treatment methods for three to six months, and the condition will be under a good control. In conclusion, there are many causes of chronic cough, but it must be correctly diagnosed and treated in order to achieve good results. Parents should not blindly seek medical advice, such patients should seek the consultation of a respiratory specialist and take a graded treatment approach that will certainly help you identify the cause and solve the problem.