A stuffy nose, or nasal congestion, can lead to other effects on the body, such as postnasal drip, sinus headaches and infections if not properly treated, according to the Mayo Clinic. A stuffy nose is the result of swollen and inflamed sinuses, which cause obstruction, preventing a person from breathing normally through the nose. The nasal swelling also traps mucus secretions in the sinuses, complicating the condition. A stuffy nose is treated with over-the-counter medications, home remedies and lifestyle changes. Talk with a doctor to determine the best treatment approach.
Postnasal Drip
One of the most common side effects of a stuffy nose is postnasal drip, a condition where mucus drains down the back of the throat, according to the American Academy of Otolaryngology. Postnasal drip occurs because the swollen sinus cavity prevents the normal drainage out of the nostrils, leaving nowhere to drain but down the throat. Postnasal drip is caused by allergies, the common cold or nasal deformities, and it is best treated by addressing the primary cause. Postnasal drip causes accumulation in the throat, which can lead to coughing, throat irritation and bad breath.
Sinus Headaches
Sinus headaches can be a side effect of a stuffy nose, according to the University of Maryland's Medical Center. The inflammation of the sinuses causes pressure throughout the head, leading to ear pain, eye pain and pain in the upper teeth. Sinus headaches have a dull, throbbing pain, felt the most when someone first wakes up. The headache may increase if the person stands up quickly or bends over. Sinus headaches can be misdiagnosed and actually might be a migraine. Only a doctor can determine the type of headache someone is experiencing. Treatment for sinus headaches include over-the-counter decongestants, antihistamines and pain relievers. Inhale warm steam, use saline sprays and use a humidifier.
Infections
Infections in the sinuses, the middle ear and the chest can develop as a result of a stuffy nose. The trapped mucus secretions in the sinuses create a welcoming environment for bacteria and viruses, according to MedlinePlus. Once bacteria or a virus set in, the sinus infection will require a doctor's attention. Inflammation from sinuses and around the inner ear can cause the tubes in the ears to become obstructed, leading to an infection. An ear infection will cause ear pain and may cause discharge from the ears. If the stuffy nose is the result of the common cold, it can lead to bronchitis, an infection in the chest that causes congestion, inflammation and coughing, according to Merck Manuals.


