How To Treat The Pussy Bump Caused By Piercing?

hi! i pierced my own ear half way up my ear (i dont think it was on my bone bit!) and it was really sore. I had it in for 9 weeks, but it was starting to get pussy and nasty so i took it out, and there is a huge bump on the back of it. i wanted to put a earring in it to see if it was better but it came out under the bump, and started to bleed. i really dont know what to do! thanks