YOU CAN'T!!!!!!!!!!!!!!. . Whatever you do don't cut it or anything!!!. . If it's infected you HAVE TO GO TO THE DOCTOR.. . I've had ingrown toenails many times, trust me. It's scary, but you must go to the doctor or else it can get, really, really bad.. . If it isn't infected, you might be able to get it out by soaking your foot in warm water, at least 3 times a day. Put Epsons salt in the water. Lots of it. Sometimes this softens it and it'll work it's way out.. . WHATEVER YOU DO DO NOT CUT ON IT, OR TRY TO CUT THE NAIL OUT!. THIS WILL MAKE IT WORSE.. . If puss comes out is is infected and you need to go to the doctor who will, in turn, refer you to a podiatrist. If they don't refer you to a foot doctor (podiatrist,) insist that they do. Only the foot doctor can help you well.