TMI!! Help,What is this???

Al

Okay I got my nose pierced on April 13th, 2018. It’s been almost a year and my nose still hurts when i put in another stud or anything. Today I went to go buy some nose rings and this is the first time ever wearing a hoop and I think I caused to much trauma to the hole and the site of the nose ring which is why it never healed but idk. Anyways I put this hoop In today and it hurt so bad but I did it and while I was cleaning it tonight I saw this pustule next to the hole/hoop and idk how to get rid of it our why it’s there?? Help!!!