I have a weird red bump on my upper back near my shoulder, i thought it was a pimple and it killed but now the pain is gone but the bump is there. It doesnt look pussy just red and it has red around it as if its irritated. Help?

As a medic I have to ask, do you live where there are Brown Recluse spider's?
I ask because the bite of a Brown Recluse is not felt due to an anesthetic in the venom. The bite then appears as a zit with a small white center and red edge. After it breaks or is popped it starts to spread with a red discoloration. It can then develop an infection and possibly lead to MRSA. Not saying what you have is a bite, but it is the first thing to come to my mind.