No rook or any cartilage piercing for that matter will not reject or migrate because it's held in place by the cartilage it self.
It will get annoyed and cranky if you are using aftercare products that are reacting to your body. So stop using all the woo woo magic stuff and just flush the piercing with lots of warm water daily and see if the piercing settles down. If it does then you were reacting to the aftercare stuff and the mystery is solved.

If you have any questions about in which and how to use Tremun Piercing Jewelry, you can call us at our own webpage.