PAPULES
Papules are a small pimples that are inflamed but not have pus.

BLACKHEAD
Blackheads are when sebum clogs the hair follicle, which darkens with oxidation.

NODULES
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Nodules are small inflammation of the skin

PUSTULES
Pustules are small blister or pimple that have pus.

WHITEHEAD
Whiteheads are pus filled pimple caused by clogged follicle

ACNE CONGLEBATA
acne Conglaebata inflammatory disease presenting with comedones, nodules, abscesses

CYSTS
cyst is filled with air, fluid, pus

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TYPES OF ACNE