My cartilage piercing....HELP...?

It takes any cartilage piercing a while to heal, some up to a year. When you bumped it you probably irritated it. Try not to sleep on that side and not to mess with it at all! The crust is normal, pus is not! As long as its just crusties it will be fine! And you might want to clean it just morning and night. Cleaning it to much isn't good for it either! If it keeps bothering you ask a doctor if its ok!