Nasal cartilage blocking the airway
There are multiple issues that can cause blockage of the airway and nasal obstruction. These include allergies, Chronic sinusitis, valve collapse, vestibular stenosis, a deviated septum, and a nasal fracture. An in person examination/ consultation is required to determine what the obstruction is. It's important to start with medical management first such as cortisone nasal sprays, antihistamines and decongestants. If medical management fails, then consideration for surgical improvement of airflow.
Valve collapse and vestibular stenosis are treated with spreader grafts harvested from the patient's own cartilage. A deviated septum is repaired with a septoplasty to improve airflow dynamics through the nose. Endoscopic sinus surgery is performed to remove polyps and open obstructed sinuses
For more information, diagrams please see the link below to our functional and cosmetic rhinoplasty website
Nose cartilage is blocking airways after surgery, What surgery is best for a revision?
Female noses are not mature at 14 and usually will continue to change until at least 15-16 years of age. If she is having symptoms, by all means she should get a consultation and exam. Until that exam is done your question cannot be answered. Septal surgery does not change the looks of the outer nose, a rhinoplasty will.