Gauging ears and ...?

i have a 10 in now i changed them on saturday- my left ear is fine the earring always goes in normal and everthing but my right ear its always a little harder to change sizes an now when i took themout toshower my bottom earlobe is swollen a little and has lke a bump in it lke aftr u get it pierced. is it infectedd? wat do i do?!