Efficacy of Intralesional Vitamin D in the Treatment of Alopecia Areata Using Dermoscopy Before and After Treatment

This study evaluated the efficacy and safety of intralesional vitamin D (cholecalciferol) in treating Alopecia Areata (AA) in 20 patients. The treatment involved injections of vitamin D3, with patients assessed initially, every 2 weeks during treatment, and 3 months post-therapy. Results showed no statistically significant change in the SALT score post-treatment. Clinically, 10% of patients experienced hair regrowth of more than 25%, while 75% showed minimal regrowth of less than 25%, and 15% showed no improvement. Side effects included erythema, itching, and pain in some patients, with atrophy and telangiectasia observed in 5% of cases. The study concluded that intralesional vitamin D is a mildly effective treatment for AA.