Why does my baby cough and spit up bubbles?

Apr 17, 2025 Source: Cainiu Health
Disease description:

My cousin's baby is three months old and has recently started coughing and producing bubbles. I would like to ask what might be causing this?

Doctor's answer (1)
Dr. Zhou Xiaofeng

Baby coughing and producing bubbles may be due to teething, as the itching of the gums can cause this phenomenon, or it may be caused by an infection in the lungs. If it is due to teething, it is considered a normal physiological phenomenon, and parents should maintain the area clean and dry, offering the baby more warm water to drink. If it is caused by a lung infection, anti-inflammatory medications such as Cefaclor Granules may be taken under a doctor's guidance, and nebulizer inhalation therapy can also be used as an adjunct treatment."