It does sound as though this is a boil. If it's only one, you should be fine. Apply a hot moist compress to the area several times a day, as this will help draw the pus out to burst open. (Don't squeeze this, as it will cause further infection) you can also take ibuprofen for pain. If you want, you can also soak in the tub with Epsom salt, this will help. It will generally take a few days to get it to the point of bursting on it own. If you should get more, or just can't get this to burst on it's own and it get too painful, then follow up with your doctor. Other wise, doing the above will help.
Best of luck Hun, Hope this helps, If you need anything else please feel free to ask. If you found this helpful don't forget to click the *ACCEPT* button and leave *POSITIVE* feedback.