The formation of a pimple involves a follicle, sebum, dead skin cells, and bacteria. Basically, dead skin cells and sebum clump together to form a plug, and a pimple is born.
The plugs are classified as comedonal acne (aka blackheads and whiteheads). Inflammatory acne occurs when bacteria causes the plug to become inflamed. Cystic acne develops when the inflamed plugs become infected, causing severe, potentially scarring breakouts.
Combination therapies are required to treat all stages of acne. If initial stages are treated and controlled, the chances of acne advancing to the next stages is greatly reduced.
One of the most important pieces of advice when dealing with any stage of acne:
Think of a pimple as a localized infection. If you disrupt its “container,” the infection will spread, not only on the surface, but also between layers of skin. The acne issue will perpetuate, and chances of scarring will increase. So… DO NOT TOUCH!