Coughing after waking up is mostly caused by allergies, improper temperature and humidity, and inflammatory infections. 1. Allergy: The child’s allergic reaction to dust, lint, mites, etc. on the bed sheets and bedding can lead to coughing after waking up. 2. Inappropriate temperature and humidity: A child who sleeps in an environment with a low temperature or dry indoor air can wake up coughing. 3. Inflammatory infections: acute bronchitis, acute pneumonia, acute upper respiratory tract infections, etc., can lead to coughing after waking up. The child woke up cough symptoms, need to go to the hospital in time to identify the cause of the disease, targeted treatment; in addition, we should pay attention to regular cleaning and disinfection of the child’s clothing and bedding, to maintain appropriate indoor temperature and humidity.