pus

Pus from the sores of an infected person are filled with contagious virus.

Pus filled buboes then grow on parts of the body -- generally in the armpit and groin area -- and a fever develops.

“My little cousin got significant sunburn blisters. Pus and everything. He couldn’t move two days later.”

Pus or uninfected fluid alters the eardrum’s mobility and changes the reflected sound.

And it's not alone, there's the allure of Woman's 20-Year-Old Cyst Finally Gets Popped or the disgustingly named The Pus Cannon.