A stuffy nose can be triggered by all kinds of things: a sinus infection, allergies, the flu, or even just the common cold.
Treating a Stuffy Nose at Home
Most congested or stuffy noses will clear up within a week. You may help the process along by staying hydrated and taking over-the-counter medicine. If your stuffy nose is the result of allergies, your doctor may recommend medicine or allergy evaluation if your symptoms warrant them.