Hello,
Rhinoplasty is not without side effects and it includes infection, injury, bleeding, skin problems, including breakdown of skin tissue (skin necrosis) and irritation from the tape and bandaging and serious nasal blockage caused by swelling inside the nose.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
Rhinoplasty does not just gives a defined shape, it also corrects the breathing problem. But I don't know what happened in your case. It might have caused because you consulted a wrong surgeon. One of my friends had a similar problem with her nose and she just undergone a Rhinoplasty. It did not just gave her a new nose, instead it could clear her breathing problem also. Dr. Robert Backstein from Ontario was her surgeon. Anyway, I recommend you to go for a good surgeon. Only a right surgeon can do it right for you. Take care.