Ugh, some of these comments are just annoying.
I have 12 ear piercings.
And it depends on how recent you have got it done.
Try turning it, or get a little bit of lotion, and put it on there, it's pretty normal.
It's not infected, unless it's swollen, red, or theres some puss coming out of it.
It could also be caused by the earing.
If you've had it in long enough, try putting a new earring it.
I have some problems with certain metals, so I always have to make sure my earing say sensitive.