Topical 2% Tofacitinib
DrugFollowing participant selection, confirmation of eligibility criteria, and completion of the baseline clinical assessment (Day 0), each participant will receive one bottle of nail lacquer containing Tofacitinib 2% for home use throughout the study period. Application of the investigational product will be the responsibility of the participant and must be performed once daily, in accordance with the instructions provided by the research team. Prior to each new application, the participant must completely remove the previous layer of nail lacquer, ensuring that the nail surface is clean and dry. After removal, a new uniform layer of the product should be applied to the affected nail(s). The product must be used daily and continuously for the entire duration of the study, in compliance with the schedule established in the study protocol.