Removing Artefill / Bellafill from the nose
Its tough to answer your question completely without photos of the problem you are trying to correct. If you could post or send me these, I could give you a more precise answer. In general, if you could avoid surgical removal of artefill / bellafill, that would be optimal. Cutting the material out tends to be complicated and tends to leave scars. If your issue is bumps or contour irregularity of your nose, I would suggest steroid injection and / or injection of filler around the contour issue to try to camouflage it. I have managed this kind of issue before and the result has been excellent. Hope that helps and feel free to reach out with further questions.
Removing Artefill from the face
I would focus on reducing inflammation in the first stage. Judging by the Grade of tissue reaction remaining, a plan for surgical removal would be in your future.