What are the acne subtypes.


inflammatory cystic acne vulgaris.
Fig. 21.2 inflammatory cystic acne vulgaris.
Acne presents in many forms and variations. The most common form is acne vulgaris, which is classified according to the predominant lesion type as comodonal, papular, pustular, nodular, or cystic. It can be graded as mild, moderate, or severe (Fig. 21-2). Other clinical subtypes of acneiform skin lesions include:
• Neonatal acne
• Infantile acne
• Perioral dermatitis
• Acne rosacea
• Acne excoriée
• Acne mechanica
• Acne conglobata
• Pyoderma faciale
• Acne fulminans
• Drug-induced acne
• Favre-Racouchot syndrome