The weather changes happening in the air have more impact on our sinuses than most people realize.
As Southern California cools down, the air turns noticeably drier—making us bundle up in layers and cozy up by the fire. But this drop in moisture can take a toll on our sinus health if we don’t take proactive measures to address it.
Let’s explore how humidity impacts sinus health and share practical tips to keep your sinuses happy and healthy this winter season.
Humidity and the Cold Weather
The cooler weather has a significant impact on our health, but especially on our sinuses. As we enjoy the mild winter, we must be wary of the dryness it also brings. Not only does this dry and irritate the skin but also the sinuses.
Sinus health and the lack of humidity
Cooler winter air means drier air. When the air is dry, it can lead to dryness and irritation in the sinus and nasal passages. This results in the swelling and inflammation of the sinuses. When the sinuses are inflamed and irritated, proper mucus drainage is prevented, resulting in mucus buildup.
The inflammation of the sinuses plus the buildup of mucus becomes the perfect breeding ground for germs, viruses, and bacteria – potentially causing a sinus infection.
Sinus health and too much humidity
Now you might be thinking, high levels of humidity can save your sinuses from the dryness and irritation from the lack of moisture in the air. Well, not exactly.
If the lack of moisture impacts your sinus health, then so does excess humidity in the air.
Extreme humidity can increase your exposure and vulnerability to airborne allergens and irritants, exacerbating sinus issues and concerns. Additionally, excess humidity also impacts cilia function. Cilia are the tiny hairs in the nasal passages responsible for moving mucus and filtering irritants and pathogens out of the air we breathe. Excess humidity decreases their function and compromises the body’s defense mechanism.
The Optimal Humidity Level for Your Home
So what is the ideal humidity level for homes come wintertime?
The ideal humidity level in your home should be between 30% to 50%. As we’ve discussed above, humidity levels that are too low or too high can be detrimental to your sinus health.
Maintain the Right Moisture Level in Your Home During Winter
1.  Run an indoor humidifier
Run an indoor humidifier in your home to add moisture back into the air. Air with more moisture is not only better for your sinuses but for your skin as well. It can prevent drying and irritating your skin, nose, sinuses, mouth, and throat – improving overall health and well-being. Remember to keep indoor humidity levels comfortable at 30% to 50%.
2.  Insulate your home
Cold outdoor air is dry. Don’t allow cold air from outside into your home. Insulate your home well and seal off drafts. This allows you to stay warm indoors without having to crank up the heat, which can further suck the moisture out from indoor air.
3.  Moisturize and hydrate
Make it a habit to moisturize and hydrate yourself to survive the cold and dry winter air. Drink plenty of water throughout the day. Not only is this generally healthy but it will also thin mucus so it spreads through the sinuses effectively. This promotes proper mucus drainage and prevents further sinus issues.
Additionally, use ointments and moisturizers to nourish your sinuses and nasal area. This offers a quick sense of comfort and relief from the dryness brought on by the dry winter air.
4.  Ease discomfort with saline spray or rinse
Saline sprays and rinses can help break down mucus buildup, cleaning out congested nasal passages. This not only improves breathing but can also moisturize and provide instant relief for dry and irritated sinuses.
5.  Try steam inhalation
Steam inhalation is an easy at-home method to clear out blocked nasal passages and moisturize dry sinuses.
Pout hot water into a large bowl and place your head above the bowl. Cover your head with a towel and breathe deeply through your nose.
6.  Keep your humidifier clean
It’s not enough to just run a humidifier – you should also keep it clean. Unplug your dehumidifier and clean it every three days. Remove any mineral buildup and rinse the tank. Change the filter if your device uses one. A high-quality HEPA filter is highly favored to remove small particles in the air.
7.  Utilize hot showers
Lastly, adjust your shower routines come wintertime. Hot and steamy showers feel good during winter and the steam from them can add moisture to the air. If you can, leave bathroom doors slightly open when you shower to release extra steam into the air. Refrain from using bathroom exhaust fans as they will suck out more moisture.
Taking care of your sinuses during Southern California’s cooler, drier months is essential for staying healthy and comfortable. By maintaining optimal indoor humidity, hydrating regularly, and using simple remedies like saline sprays or steam inhalation, you can protect your sinus health and avoid unnecessary discomfort this winter.
For expert advice and personalized care, Del Rey MD is here to help. Whether you’re dealing with chronic sinus issues or just need guidance on staying healthy through the seasons, our team is ready to support you. Visit us at Del Rey MDto learn more.