How long does it take drawing salve to get a splinter out?

I got a splinter at work the other day and am too much of a pansy to get it out with tweezers. I put drawing salve on it with the umption it would come out in about a day. Its been about a day and a half and it looks exactly the same. Is it suppose to take this long? Am I supposed to do anything else after I put it on or does it just end up in the bandaid I put over it?