Vascular occlusion and steroid injection problems?

I recently had a vascular occlusion from steroid injections. It has almost healed (still slightly purple when cold). I then got steroid injections to get rid of some scar tissue(I’ve had 4 rhinoplasties over the years. First doctor botched my nose). The steroids worked but now I have some slight indentation and blueish/purple tint. Is that from the steroids or do I need the get an ultrasound to make sure it’s not still the filler problem?