If your 3-year-old child has a cough following COVID, it is important to promote nasal hygiene with a saline solution, as well as using a nasal aspirator to help reduce nasal secretions that can lead to coughing. It is also important to monitor your child's general health and encourage them to drink plenty of fluids. If you have any further questions or concerns, do not hesitate to seek further advice from a healthcare professional.
