This study is being done to evaluate the effect of targeted UV-B (a component of sunlight) on the treatment of acne keloidalis nuchae (AKN, or razor bumps on the back of the neck). The investigators believe targeted UV-B is a safe and effective way to reduce the appearance of AKN.
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Percentage Change in Total AKN Lesions From Baseline to Week 16.
Timeframe: Baseline to Week 16