Papules are a small pimples that are inflamed but not have pus.
Blackheads are when sebum clogs the hair follicle, which darkens with oxidation.
Pustules are small blister or pimple that have pus.
Whiteheads are pus filled pimple caused by clogged follicle
acne Conglaebata inflammatory disease presenting with comedones, nodules, abscesses
cyst is filled with air, fluid, pus
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TYPES OF ACNE