The above 2 answers are right, they are the same, i get them under my eye, although they arnt there at the moment, i can feel when they are coming and i roll my skin in my fingers...??? lol
They take ages to come so that you can get them out, i did use a needle once but i think its better to just squeeze them when they are ready and then the next day when they have scabbed a bit squeeze them again and the white hard thing comes out, they go away for months then.
Im gonna check out this website link though and see if there is a better way to get rid of them.