Well, I'd continue cleaning 2x a day with hot sea salt water, possibly a little stronger than usual. That usually gets rid of any scarring I have. There are a few more slightly dodgy methods that have worked for quite a few people, but try at your own risk, I guess. Making a paste out of crushed aspirin and applying that for a bit each day sometimes can help, although it's better on oral piercings. Soaking the piercing with a warm chamomile tea bag is often recommended for nose piercings (which often develop scarring or boils) and I know they've helped people I know.
I tend to stick to regular sea salt soaks and that clears it up.
Also, if you're using a CBR possibly get it changed to a barbell.