Q: My child's fever dropped after 3 days, but they still have a cough. Do we need a Mycoplasma test and specific medication?
Updated: Sep 7
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 had a high fever for three days and took fever reducers every six hours. Today, the fever has finally gone down, but a runny nose and a cough still remain. We are currently giving them the medication prescribed by our pediatrician. However, I am wondering: if this happens to be a Mycoplasma infection, do we need to get them tested and receive a different, specific prescription?
Answer:
I am glad to hear that your child's high fever has subsided after three days. It is completely understandable that you are concerned about Mycoplasma pneumonia given the lingering symptoms.
Mycoplasma Medication
Unlike standard common cold treatments, treating a Mycoplasma infection does require specific antibiotics. These typically include:
• Azithromycin
• Clarithromycin
• Doxycycline (usually reserved for children 8 years and older)
When to Revisit the Doctor
You should take your child back to the clinic for further evaluation if you notice any of the following:
• The fever returns or lasts for more than 5 days total.
• A dry cough persists for more than 2 weeks.
• Phlegm or spit-up becomes thick and yellow or is blood-tinged.
• Your child experiences wheezing or chest pain while breathing.
• There is no improvement at all despite taking the prescribed medication.
Current Situation Assessment
Because the fever has already resolved and only a runny nose and cough remain, it is highly likely that your child is dealing with a standard viral cold rather than Mycoplasma. For now, you should continue administering the currently prescribed medication.
In its early stages, a Mycoplasma infection is very difficult to distinguish from a common cold, which makes careful observation at home essential. Please continue to monitor your child's condition closely. If any of the warning signs listed above appear, please revisit your pediatrician for an in-person evaluation and discuss whether a Mycoplasma test is necessary.
For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.
