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Rosacea

Acne, close-up of c...

Rosacea

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Acne, close-up of cysts on the back

Cystic acne, or nodulocystic acne, is the most severe form of acne. Both pustules and hard red bumps are present in the skin. This form of acne is more difficult to treat and often requires taking an oral vitamin A derivative.

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Definition Alternative Names Causes, incidence, and risk factors Symptoms Signs and tests Treatment Expectations (prognosis) Complications References

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Rosacea

·As a Risk Factor

Blepharitis

Chalazion

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