Here's what you need to do:
Don't pick at it, that will only make it worse. I would suggest 2 or 3 Ibuprofin (200 mg) every 4 hours to bring the swelling down. You will also want to alternate icing it and applying hot compresses for at least 30 minutes 3 times a day. If this doesn't work, you might also try a sits bath in epsom salt, make sure the water is comfortably warm. Avoid grapefruit juice and foods prepared with cumin. If all else fails, call your doctor. He or she will be able to prescribe something, and maybe lance it, if necessary.
Good luck!