BlackStar Body Piercing

Hi,
There's this red bubble like a small lump at the piercing site,
When i put the earring through, diluted blood would come out from the bubble
and i really do not know what to do to get rid of it
I'm afraid that if i close it the piercing, the lump would remain there
Can i put anti-septic cream/ anti-biotic cream on the bubble?
otherwise what should i do to get rid of the bubble
How do i know if its a keloid?

Thanks!