Excess use of over-the-counter medications is the second-leading cause of peptic ulcers, which cause stomach pain.

Regular mucus tends to be thin and slippery, and it is generally a constant presence on a day-to-day basis. Meanwhile, phlegm ...

Breathing is something we typically take for granted, until it’s a struggle to do so. When your lungs are clogged with thick, ...

Some people feel better if they spit out phlegm, especially if the phlegm is thick, sticky or irritates the throat. Spitting ...