The cough has not improved, and it coughs when exposed to cold or heat.

Patient's question:

My baby is 9 years old this year;;It started coughing during the New Year and hasn't gotten better yet;;It gets a little better one day and then worse the next;;Thick nasal discharge;Coughing with phlegm;It's still yellow;;When I went to the hospital, the doctor said it was a fever and cough;;I was given two days of intravenous saline;;The condition hasn't improved at all;;;Hello, what is the reason? What was the previous treatment and its effectiveness: IV saline;Drinking lung-purifying syrup;What kind of assistance is needed: Take a look at what the reason is for it not getting better

Doctor's answer:

According to your description, it is recommended that you take your child to the respiratory department for a follow-up visit. The doctor will conduct a detailed physical examination and relevant tests to accurately determine your child's condition. Based on the test results, the doctor will provide symptomatic treatment. Please actively cooperate with the treatment as recommended by the doctor. Wishing your little one a speedy recovery.
Maintain fresh indoor air by frequently opening windows for ventilation. Open the windows at least twice a day for 20 minutes each time to reduce the risk of respiratory infections. Keep the indoor temperature and humidity comfortable, with a room temperature of approximately 22-25°C and a humidity of 50%-60%.