hole in middle of belly button piercing

i have had a belly button piercing for over a year now and ever since i went to the gym with a waist trainer it got really irritated and i stopped wearing the waist trainer but now it keeps getting irritated and now it’s infected. it’s not where the piercing is pierced through my skin either it’s like in the middle of the two holes. it almost looks like a third hole, and when i get sweaty or i bend over too much it gets raw again. what do i do? can i change my piercing? should i take it out?