Q: My child's fever from the flu broke, but a severe cough and runny nose have lasted for 1.5 weeks. Do we need further testing?
- Myeongchan Kim, MD
- Jul 5
- 2 min read
Updated: Jul 8
Medically reviewed by Sang Hyun Ahn, MD
Content edited by Myeongchan Kim, MD
This post is a dramatization of a question and answer session experienced by our actual medical reviewers. Please note that this content is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.
Question:
My child recently had the flu. The fever has finally gone down, but the severe cough and runny nose just won't go away. It has been about a week and a half now. If this continues to linger, do we need to get further medical tests done? It is incredibly persistent, and I am getting worried.
Answer:
It is very exhausting and concerning when symptoms linger for a week and a half after the flu.
However, it is actually quite common for a post-flu cough and runny nose to persist for 2 to 3 weeks. The influenza virus can damage the respiratory mucous membranes, and it simply takes time for that tissue to heal and recover. The cough, in particular, is usually the longest-lasting symptom.
Here are some home care steps you can take right now to help relieve your child's symptoms:
• Use a humidifier to maintain indoor humidity levels between 40-60%.
• Encourage your child to drink warm water frequently.
• Give 1 spoonful of honey to help soothe the cough (only for children over 2 years of age who do not have a honey allergy).
• Use a sterile saline solution for nasal rinses to help clear the nasal passages.
While lingering symptoms are normal, you should bring your child to see a doctor for an evaluation if you notice any of the following warning signs:
• A fever starts again.
• The nasal discharge or phlegm changes to a thick, yellowish color.
• The child exhibits difficulty breathing or wheezing.
• The symptoms worsen or show absolutely no improvement after the 2-week mark.
In most cases, these symptoms will naturally resolve within 2 to 3 weeks. However, if there is no improvement at all by the 2-week point, please consult your pediatrician to rule out a secondary bacterial infection. For now, you can continue to focus on symptom relief at home and closely observe your child's condition.
For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.
