Drink plenty of water
Sip warm liquids
Gargle with warm salt water
Use a humidifier
Breathe steam
Clear your throat gently
Swallow instead of forcefully coughing
Use saline nasal spray
Try a saline nasal rinse
Avoid smoking and secondhand smoke
Avoid alcohol
Reduce dairy if it worsens mucus for you
Avoid very cold or very dry air
Sleep with your head elevated
Treat allergies if they are a trigger
Treat acid reflux if it is a trigger
Use an over-the-counter expectorant if appropriate
See a doctor if it lasts more than a few weeks
Seek medical care if you have fever, trouble breathing, chest pain, blood in mucus, or severe symptoms