Nodulocystic Acne

Key points

• Deep tenderness and scarring risk distinguish it from acne limited to blackheads, whiteheads and small spots.
• Topical treatment alone is often insufficient, so early dermatology assessment can prevent cumulative damage.
• Isotretinoin has a major role in selected severe disease but is highly teratogenic and needs structured monitoring.

The listings below do not confirm nodulocystic acne; infection and other nodular skin disorders should be excluded.

Assessing severity and mimics

Clinicians document body sites, active nodules, sinus tracts, existing scars and previous treatment. Sudden monomorphic eruptions can be medicine-related, while fluctuant fever-associated lesions may represent infection. Mental-health impact is part of severity.

Treatment priorities

Care aims to stop new nodules and limit scars. Oral antibiotics may have a time-limited role with benzoyl peroxide, while isotretinoin is considered for severe, scarring or resistant disease. Pregnancy prevention requirements, liver tests, lipids and adverse-effect counselling follow local protocols.

When to seek urgent care

Seek prompt care for fever, rapidly spreading redness, severe escalating pain, marked facial swelling, eye involvement or a severe medicine reaction with blistering or breathing difficulty.

Further reading

• 10 reasons your skin itches uncontrollably and how to get relief
• Acne - NHS
• Topical fusidic acid - DermNet