Does nighttime cough worsen in children with bronchitis?

Patient's question:

My child has been coughing for almost a week. Later, my husband took the child to the hospital, and that's when we found out the child had bronchitis. They have already been getting injections for two days at the hospital, but in these past few days, the child's coughing has gotten worse at night. How can we relieve nighttime coughing in children with bronchitis?

Doctor's answer:

Bronchitis itself is relatively severe in terms of tracheal irritation, so generally, coughing will be more pronounced. When your inflammation is controlled to a certain extent, this condition will gradually improve. Therefore, treatment of bronchitis should be the primary focus.
Additionally, coughing tends to worsen at night. This is primarily due to the excitation of the vagus nerve during the night, which can trigger coughing. Moreover, during the night, the diaphragm may elevate, making it easier for coughing to occur.

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