I did a search and couldn't find anything very detailed on the subject. i pulled the plug and gauzed it, but dh said he thinks I will have to lance the entire foot to make sure to get it all out. He said it can run deep. I have never had anything to get it before so it is new to me. I discovered her foot swollen about a month ago but with the new job, moving and my dad passing, I just haven't felt like messing with her. I did find a link on lancing it for chickens, but I would rather have someone experienced to speak to if I have any questions. The plug was about 3/8 of an inch wide and about an inch long. From there I found blood. There was also a "sleeve" that came out with it that was still attached to the pad of her foot and i trimmed it off.