An Interventional, Comparative, Prospective Study to Determine Optimum Concentration of Intralesional Triamcinolone Acetonide in Treatment of Alopecia Areata

This study investigated the optimal concentration of intralesional triamcinolone acetonide for treating alopecia areata by comparing 1.25 mg/ml and 2.5 mg/ml concentrations in 35 patients with 70 alopecic patches. The results showed that 2.5 mg/ml was significantly more effective, with 62.8% of patches achieving more than 75% hair regrowth, compared to the 1.25 mg/ml concentration, where 74% of patches failed to show more than 50% regrowth. No adverse effects were reported, suggesting that 2.5 mg/ml is the minimal effective concentration for managing alopecia areata.