Septorhinoplasty, Applying a Ice Cube Has Made the Nose Swell and Has Not Gone Back Down Its Been Three Weeks?

I had septorhinoplasty 2 months ago,3 weeks ago I put ice on the nose but only in a plastic bag and directely on the nose for about 20 minutes this made the part of my nose that the ice was on swell up quite a bit making it look like i had a bump again,the bottom of the nose had a firmness which had felt less firm which means it is healing,but were i put the ice has made that part of the nose go firm again,and it is slighlty brused i think as that part is slighlty bule purple,what have i done??