Go to a "training hospital" (usually affiliated with a Univeristy Medical Center) ER and see if they'll let one of the interns take them out gratis. It's practice for them so they might not be professional, but you'll get them out and there's help standing by if they really screw it up. If you're really ballsy, ask if one of the nurses (they're the ones with experience) can use your head to demonstrate to the interns how to do it. Don't lie and say you've got insurance when you don't, just tell them your situation (you're a travelling kid, hobo, etc.) and that you're hoping they'll take care of it for you. If you can spare it, tell them you can give $10 or so to cover gauze or bandages. Usually you can find somebody to take care of minor things like this, and you might get a quick going over (for lice, skin problems, blood pressure). Also, hospitals are always getting sample-size packs of various meds, maybe they'll give you a few antibiotics, pain meds, or soap for cleaning the area. However, don't ask for these, let them offer.