Blowing Nose After Septoplasty?

Blowing the nose after septoplasty should be done with caution As the nose it is at higher risk for bleeding and suture disruption with such increased pressure. If any concerns you should discuss with your surgeon who will be the best source for your follow up.

In most cases, gentle nose-blowing after septoplasty is not going to cause a problem. The biggest risk is probably the risk of causing a nose bleed. That being said, septal perforation or movement of septal flaps or cartilage under the flaps is possible with nose-blowing soon after surgery. For these reasons, I instruct my patients not to blow the nose for at least two weeks after surgery, and even then, to begin to do so only very gently.
Best,

It’s not unusual for patients to have nasal congestion
following septoplasty.This is often
secondary to swelling with crusting and scabbing within the nasal passage. When
this occurs, patients have an irresistible urge to blow their nose.We
general recommend that patients avoid blowing their nose for at least two weeks
following routine rhinoplasty and four to six weeks following septoplasty.When patients blow their noses in the early
post-operative period, they can potentially damage the nasal mucosa and cause
bleeding.For this reason, we generally
recommend nasal saline irrigation in the immediate post-operative period.

  In our practice, we ask patients not to blow her nose for at least a week after the septoplasty procedure, but it's doubtful that you altered the shape of the nasal septum by blowing your nose. Always best to check with your operative surgeon for a postoperative check up of your nasal septum

We generally recommend to our patients that have a Rhinoplasty and/or a Septoplasty that they refrain from blowing their noses for about 2 weeks after the procedure.  Instead we recommend nasal saline irrigations to help clean the nose.  We also recommend that our patients sneeze through their mouths if they must.I would speak to your surgeon about this instead of worrying much.  Depending on what he did, it may not be anything to worry about.  The surgeon may want to see you just to examine the nose.