That tickle in the back of your throat? The constant urge to clear it? You're likely dealing with post nasal drip. But *what causes post nasal drip* exactly? Let's break it down.
The most common culprit is the common cold. Viral infections inflame nasal passages, increasing mucus production. Allergies are another frequent offender. Pollen, dust mites, and pet dander can trigger an allergic response, leading to excess mucus.
Beyond colds and allergies, sinus infections (sinusitis) can also be to blame. Irritants like smoke and dry air can further exacerbate the condition. Less common causes include deviated septums and certain medications. Finally, sometimes it's simply gravity! Mucus production is constant, and when you're lying down, it pools, creating that annoying drip.
Understanding the cause is the first step to finding relief. Stay hydrated, try a saline nasal rinse, and consult your doctor for persistent or severe symptoms. No more tickle torture!
