A deviated septum is typically fixed with a surgical procedure called septoplasty. Here’s a concise overview of how the repair is usually done, plus some context on what to expect. Direct answer

• Septoplasty straightens and repositions the nasal septum to improve airflow. It often involves removing or reshaping the deviated cartilage and/or bone while preserving a supportive L-shaped cartilage framework to maintain nasal structure. Final results are usually evident gradually over weeks to months, with the full outcome sometimes taking up to a year. [medical sources broadly describe the procedure and recovery]