A Simple Method to Visualize the Regrowth of White Vellus Hairs Using Superficial Cryotherapy

The document discussed a method to visualize the regrowth of white vellus hairs using superficial cryotherapy. It highlighted that intralesional corticosteroids were the preferred treatment for adults with localized alopecia areata, despite the lack of randomized controlled trials. Hair regrowth was observed in approximately 64-97% of patients with patchy alopecia areata treated with 2.5-10 mg/mL triamcinolone acetonide. The method aimed to provide evidence of hair growth to avoid unnecessary side effects from repeated treatments, such as transient atrophy and telangiectasia.