RecruitingBehavioural interventionSelf-Management for Head and Neck Lymphedema and Fibrosis [PROMISE Trial]The goal of this study is to evaluate the effectiveness of a standardized lymphedema and fibrosis self-management program (LEF-SMP) to improve LEF self-management and reduce LEF-associated symptom burden, functional deficits, and improve quality of life in head and neck cancer (HNC) survivors.