Pinching in Nose a 1 1/2 Years After Rhinoplasty? Did I Cause It?

The pinching in the nasal tip and herniated cartilages inside the nostrils can be the result of suturing techniques used during the rhinoplasty procedure.  The ridges on the inside of the nose can be softened and adjusted to improve airflow through the nose.

Without actually looking inside the nasal  cavity, those white "bumps" are likley areas of scarring from the incisions used in the original rhinoplasty.  They may become raised,white, hard and slightly tender when manipulated.  When pushed, prodded and otherwise manipulated your moving the white bumps around means you are also pushing on deeper structures of the nose which can be tender in and of themselves.  The tightness you are experiencing means the nostrils are tightening (aka stenosing) and should be addressed as well to keep them open. 

I would recommed you re-visit the "white bumps" situatuion with the surgeon who is to perform the revision rhinoplasty and ask him/her how what they are and how it should be addressed. Also make sure you have devised a game plan on how to address the areas that are getting tighter. 

Your nose has changed over the past 1.5 years. It sounds like you're describing some scar  tissue in your nostril. You did nothing to cause this but I would stop cleaning your nose. Your revision should improve the airway.