Background: Intralesional injection of corticosteroid (ILIS) and pulsed-dye laser (PDL) have been used in nail psoriasis treatment with variable outcomes.
Objective: We sought to compare the efficacy of ILIS to PDL for the treatment of psoriatic fingernails using a dermoscope in the assessment and follow-up.
Methods: This study included 30 patients with bilateral nail psoriasis. The fingernails of one hand were treated with PDL, whereas ILIS was used to treat the fingernails of the other hand. One psoriatic nail was left alone as a control. Every patient received four treatment sessions once every month. Efficacy was recorded clinically using the Nail Psoriasis Severity Index (NAPSI) and by a dermoscope before treatment (baseline) and at eight, 24, and 36 weeks after treatment.
Results: The assessment by NAPSI revealed improvements of 22.24% and 24.11% occurred in the laser group and the intralesional steroid group, respectively. Also, the dermoscopic assessments revealed an improvement of 18.33% in the laser group versus that of 21.69% in the ILES. No significant difference was found between the two groups.
Conclusion: Both PDL and ILIS are considered safe treatments for nail psoriasis, yielding nearly equal results. The dermoscope is a reliable tool for the diagnosis and follow-up of nail psoriasis treatment.
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