Recommendations for treating nasal congestion related to pregnancy:
Apply a warm, wet washcloth to your cheeks, eyes, and nose to reduce congestion.
Avoid using nasal sprays unless prescribed by your doctor because they can aggravate your symptoms.
Drink plenty of fluids (at least 6-8 glasses of fluids a day) to thin mucus.
Elevate your head with an extra pillow while sleeping to prevent mucus from blocking your throat.
Use a humidifier or vaporizer to add moisture to the air.
Take a warm shower or bath.