Acne and Rosacea Charity Training Manual
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With deeper lesion developing the deeper inflammatory lesions of acne<br />
are analogous to furuncles in S aureus infections. These nodular lesions<br />
are often painful <strong>and</strong> may last weeks before resolving. Some may not<br />
come to a head <strong>and</strong> the pus takes time to be absorbed by the immune<br />
system. Rupture of the follicle could lead to damage to collagen <strong>and</strong><br />
scarring (Figure 6)<br />
Figure 6 – Deeper inflammatory acne with some<br />
scarring<br />
Cystic acne develops when adjacent nodules rupture together<br />
analogous to a S aureus carbuncle. This leads to a large cavity<br />
under the skin that is full of pus with multiple heads representing<br />
the follicular openings. These are often persistent or recurrent<br />
<strong>and</strong> generally lead to scarring (Figure 7).<br />
Figure 7 – Multiple cysts with evidence of deep scarring
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