You could take some basic steps to help inflammation.
Apply heat for 20 minutes, then cold for 20 minutes (i.e. ice pack), in sets of about three.
you could/should also go to physiotherapist, where you would receive better advice, as well as ultrasound as needed (an anti-inflammatory, among other things I think), if you don't mind others prodding your (likely nice (from cycling)) butt. They would know what to do.

Good luck!