What is it ?
The most severe form of acne — occurs when oil and dead skin cells build up deep within hair follicles. The resulting rupture within your skin may form boil-like inflammation.
People with cystic acne develop pus-filled acne cysts (pimples) deep under the skin. The acne cysts are often painful and can be large. A dermatologist should treat cystic acne to reduce the risk of scarring and infection.
Cystic acne causes include:
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Age (teenagers are more prone to cystic acne).
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Family history of cystic acne.
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Hormone changes during the teenage years and sometimes during menopause, and stress.