Medically reviewed by William Truswell, MD Postnasal drip occurs when mucus from your nasal passages drips down the back of ...

This can lead to symptoms like nasal congestion or discharge, post-nasal drip, headache ... your doctor may do an exam and run tests to see what is causing the sinusitis. Corticosteroid nasal ...

Post nasal drip is basically just mucus. So with spring allergies you tend to notice-- basically, it's your body's reaction to something foreign. So when you produce a little too much mucus then ...