What is this red, hard bubble on my gum after my tooth extraction?

I had my upper canine tooth extracted 5 days ago, and a red hard bubble has formed on the gum above of the extraction site and it hurts like heck!!

What is this red, hard bubble on my gum after my tooth extraction?
Could be an abcess. Call your dentist pronto!
Reply:You should go see your doctor. It could be a serious infection. A poisonous puss pocket.
Reply:i agree w/ the other two answers!!! you should go to the dentist asap!
Reply:The first two answers could be right or it could also be a blood clot. Whatever you do, don't try and pop it or remove it. Like they said, call your Dentist ASAP.
Reply:maybe the pressure from the extraction and the tools the dentist used cause some irratation to the gum area.
Reply:Depending on the seriousness, size and coloration of the bubble, it could just be a inflamation reaction to the hole in your gums. This could be natural or abnormal, so contact your dentist to let him know. Dont start freaking out yet!
Reply:See your dentist yesterday!