When your child has a dry cough, you should first analyze the cause in conjunction with the possible accompanying symptoms, and then determine how to deal with it from the cause. If the dry cough is not serious and is occasional every day, it is mostly related to environmental factors, so pay attention to adjusting the temperature of the environment to avoid being too high and the humidity of the environment to avoid being too dry, and at the same time, give your child water regularly and eat more thin porridge and hot noodles to ensure fluid intake so that the respiratory mucosa is in a relatively moist and protected state. If the child also has symptoms such as nasal congestion, runny nose and sneezing, the dry cough may be related to the backflow of nasal secretions into the throat to stimulate the cough. At this time, the main solution to the problem of the nose is to wash the face and nose with warm water or spray the nose with a physiological sea saline spray. Some children have a severe cough, with paroxysms of violent dry cough, even followed by dry heaving, nausea or even vomiting, especially if the cough is light during the day and heavy at night, you need to be highly alert to the possibility of mycoplasma infection, and further examination is needed to determine the cause. If the presence of mycoplasma infection is confirmed, it is necessary to use macrolide antibiotics to solve the problem by anti-infection treatment at the root. When the dry cough is intense and the baby seems to be struggling before effective anti-infection, temporary cough suppression can be done by nebulized inhalation or oral dextromethorphan.