Drink plenty of water
Use a saline nasal spray
Rinse your nose with a saline rinse or neti pot
Use a humidifier
Inhale steam from a warm shower
Avoid smoke, dust, and strong odors
Sleep with your head elevated
Try an over-the-counter antihistamine if allergies are the cause
Try an over-the-counter decongestant if appropriate
Use a nasal steroid spray if recommended by a doctor
Avoid dairy if it seems to worsen symptoms
Gargle warm salt water
Suck on lozenges to reduce throat irritation
Treat acid reflux if it is contributing
See a doctor if symptoms are severe, persistent, or accompanied by fever, facial pain, or trouble breathing