Without seeing your tooth or doing an exam, it sounds as though you may have something called reversible pulpitis, which may be fixed with removing what we feel is the cause of the irritation, and therefore lead to reversing the inflammation in the pulp. This occurs when your pulp (nerve)becomes irritated. The cause can be a variety of things; decay, trauma, etc. Anyways, if it is reversible, a dentist could remove the decay or whatever may be causing the irritation, and place a temporary filling, wait 6 weeks to see if the pain subsides and if it does then place a permanent restoration. My recommendation would be to see the dentist soon though, because if this progresses to the point that it doesnt hurt anymore, the chances are very high that the tooth (nerve) has died and that the tooth will need to be treated by a root canal (removal of the nerve).
Remember, like I said, I have not treated you, nor have I seen any radiographs. YOu may also have something called irreversible pulpitis, in which the irriation has been so bad that you cannot reverse it. In this case you would need a root canal, otherwise the tooth may become infected and eventually lead to needing to be extracted, or worse yet, close off your breathing and lead to death.
YOu could also be grinding causing tooth pain, or something else. PLease, don't just suck it up and wait it out. THis could very well lead to worse problems.
Antibiotics may get rid of the infection, but it does not remove the sourceof the infection, which is whatever caused the irritation in the first place. Antibiotics are a short fix, and when the infection returns, it will come back with a vengence.