or postnasal drip, saline irrigation may help clear mucus from the nasal passages.
Use appropriately prepared or sterile/distilled water according to product instructions rather than untreated tap water.
Treat allergies when appropriate
If allergies are responsible, addressing the underlying allergy is generally more useful than repeatedly trying to suppress mucus itself.
Don’t Rely on Antibiotics Just Because Phlegm Is Green
One of the most persistent misconceptions about phlegm is that green or yellow mucus automatically means a bacterial infection.
It doesn’t.
Many viral respiratory infections can produce colored mucus.
Antibiotics only work against bacterial infections and do not treat viruses.
Taking antibiotics unnecessarily can cause side effects and contributes to antibiotic resistance.
If symptoms are severe, prolonged, or worsening, a healthcare professional can determine whether further evaluation or treatment is necessary.
The Bigger Picture Matters More Than the Phlegm Itself
Phlegm is a symptom, not a diagnosis.
Two people
