Mucus is a sticky substance inside the body and nasal cavities that consists of antibodies, enzymes, protein and a variety of cells, according to WebMD. Mucus can be a green, yellow or clear gooey substance. More » Health Conditions & Diseases Cold & Flu

Causes of a yellow or green nasal mucus include bacterial or viral infection, nasal polyps or an allergic reaction to pollen, smoke, fumes or other environmental elements, says ZocDoc. Dry air and the presence of a cold ... More »

The presence of bacterial infections can change the color of mucus, as reported by Cleveland Clinic. Mucus also changes color when the immune system is working to fight off an infection. Straight mucus contains proteins,... More » Health Pain & Symptoms

Treatments for excessive mucus in the throat, also known as post-nasal drip, include taking antihistamines and decongestants when the mucus is caused by viral infections or sinusitis and taking antibiotics for bacterial ... More »

A sinus infection, which is also known as sinusitis, occurs when the normally air-filled sinus cavities becomes inflamed in a way that prevents the normal passage of mucus, according to MedlinePlus. The inflammation can ... More »

To rid the body of nasal drainage and excess mucus quickly, rinse out the nose with a saltwater solution, also known as nasal irrigation, twice each day, according to ABC News. A combination of medical treatments and hom... More »

Coughs get worse at night due to mucus pooling at the back of the throat, drier air at night and the body's natural reflex to clear the lungs, according to Everyday Health. Nighttime coughing may prevent sleep, and rest ... More »