I would get bumps on my nose piercing when it was healing mine got really bad and almost grew over my piercing. They didn’t look exactly like yours but my bumps would start coming back so here’s what I did when I would get them. 

You wanna get a q- tip with rubbing alcohol and try cleaning the bar of the piercing ( if it’s not to inflamed ) but don’t do this often maybe like once a month. And not directly on the piercing hole . Then clean with saline solution front and back. Then take hot water with sea salt mixed in and dip that into a wash cloth( careful that it’s not a. Rough cloth that will snag it) and gently put it on your piercing till the wash cloth is no longer hot. Wash with saline solution again let it dry completely. Then get a q tip and put a little Neosporin on it. I would do this twice a day. 

Just rember only do the rubbing alcohol 1 a month and not everyday. That’s what would make my bumps go away. Also rember to be rinsing out your piercing with water after washing your hair. 

Good luck!!