Hello, the common hazards after rhinoplasty are dyspnea after operation, which is caused by swelling of incision or upper respiratory tract infection or allergy. Improper operation during operation may lead to nasal perforation, nasal polyps, dizziness and decreased vision. There are also symptoms such as black skin, black nose, dizziness and vomiting. Improper treatment after augmentation rhinoplasty may cause syncope, allergy, pain, edema, nerve injury, bleeding, infection, deformity and other uncomfortable reactions.