Q: My child has had persistent phlegm for 3 months since getting pneumonia. Should we go to a university hospital? What tests are needed?

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 has had phlegm for over 3 months. They had pneumonia in late October and the flu in early January. We've been giving them cold medicine since late October. Sometimes it seems to get a bit better, but then the symptoms return. Since standard medicine hasn't fully cured it and we felt they were taking too much, we are currently trying herbal medicine from an Oriental medicine clinic, but I'm still not sure if it's working.

My child seems to be suffering so much. They play perfectly fine during the day, but right before bed, they suddenly complain of a sore throat. Earlier tonight, they woke up coughing and threw up phlegm (they just spat up phlegm several times, said it was exhausting, and then went back to sleep).

Considering it hasn't healed after visiting pediatric clinics, ENT clinics, and Oriental medicine clinics for 3 months, should we go to a university hospital? Which department should we visit? I sometimes wonder if it's asthma because of the excessive phlegm, but there is no wheezing. If phlegm persists for over 3 months, what tests should be done, and which medical department should we go to?

Answer:

You must be very worried since the phlegm has continued for over 3 months.

[Situation Summary]

Your child has had persistent phlegm since having pneumonia in October, with symptoms improving and worsening despite various treatments. Important information here is that while there is nighttime throat pain and vomiting of phlegm, there is no wheezing, and your child plays well during the day.

[Reassurance & Key Points]

• If daytime activity is normal and there is no shortness of breath, weight loss, or persistent fever → This is not a life-threatening situation.

• Phlegm lasting more than 3 months can be caused by a combination of factors such as postnasal drip (mucus dripping down the back of the throat), cough-variant asthma, gastroesophageal reflux disease (GERD), or a post-infectious cough. A step-by-step evaluation is necessary.

[What to Do at Home]

1. Keep a symptom diary (for 2 weeks)

• Note the time of cough/phlegm (day/night/dawn), triggers (eating/exercise/lying down), and presence of nasal congestion or runny nose.

• Track the pattern of throat pain before bed, as well as changes in the color and amount of the phlegm.

2. Manage the indoor environment

• Maintain 40-60% humidity; block out dust, pet dander, and cigarette smoke.

• Use a saline nasal wash (2-3 times a day) → This helps relieve postnasal drip.

3. Fasting 2-3 hours before bedtime (if GERD is suspected)

• Elevate the upper body slightly when sleeping (place a folded towel under the pillow).

4. If taking herbal medicine

• Inform your current pediatrician about the concurrent use. If there is no change in symptoms, re-discuss the treatment direction with them.

[Questions to Ask Your Medical Team]

1. "What tests are necessary right now?"

2. "Will the treatment change depending on the test results?"

3. "What is the observation plan, and when should we re-evaluate?"

[Referrals & Consultations]

• We recommend a step-by-step referral based on your current pediatrician's judgment:

- 1st step: Pediatric Allergist/Pulmonologist (to evaluate for cough-variant asthma or chronic cough)

- 2nd step: ENT specialist (for a detailed evaluation of chronic sinusitis or postnasal drip)

- 3rd step: Pediatric Gastroenterologist (if GERD is suspected)

• Rather than visiting a university hospital directly, getting a referral letter from your current pediatrician will make the testing and consultation process much more systematic.

[Warning Signs → Require Same-Day Evaluation]

Visit your pediatrician immediately if any of the following occur:

• Weight loss or a sudden drop in appetite

• Fever of 38°C (100.4°F) or higher lasting for 3 or more days

• Blood in the phlegm

• Shortness of breath or wheezing starting at night

• A noticeable decrease in daytime activity levels

Try keeping the symptom diary for 2 weeks. If there is no improvement or if symptoms worsen, visit your current pediatrician again and request a referral to a specialist.

For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.

https://fevercoach.us