White Stuff Inside Pimple. Watch the animation to. This is the substance that comes out when you pop a pimple.

The White House is nearly 230 years old so its not hard to imagine that some pretty interesting stuff has gone down there. This inflammatory reaction recruits immune cells called neutrophils a type of WBC. This is the kind with a red or pink inflamed border and a yellow or white center.
This type of acne occurs when a pore becomes clogged with sebum dead skin cells and debris.
Pimples are actually pus located under the skin. It only has one immediate way out. This is the substance that comes out when you pop a pimple. If you have small yellowish white or pale pimple or bump like spots on the sharp demarcation that is between the red colored part of your lip and your normal skin ie.