A collapsed nose can be improved by: hyaluronic acid injection, rhinoplasty, or a combination of both. 1. Hyaluronic acid injection: If the degree of collapsed nose is relatively mild, you can choose to inject hyaluronic acid to correct it. Hyaluronic acid injection has the advantage of high safety, but it can be degraded by itself and needs to be injected regularly. 2. Rhinoplasty: For more serious nose collapse, surgery can be used to improve it. Cartilage rhinoplasty, rhinoplasty with prosthesis and other methods can be used to achieve a more durable shaping purpose. This surgery is contraindicated for children who are in the stage of growth and development. 3. Combined injection surgery: If you are not satisfied with the result after rhinoplasty, you can also combine a small amount of hyaluronic acid injection to further correct the bridge of the nose. All in all, if you want to make your nose straight, it is recommended to consult a doctor in person and choose the appropriate treatment according to your own situation.