Belly button piercing problems!!! HELP HELP HELP

Hi guys!!! I need help with my piercing. I got it 4 months ago and have had relatively little problems, until now. It's been hurting and red on the top ball. It's a but discoloured around the top ball, and it's dry around it. I feel it has been irritated because I've been cleaning it too vigorously and it has been getting caught in my clothes. Is it rejecting? Migrating? Or is it just healing still and I'm being paranoid??