Please contact this rescue group first. Scroll down to the bottom of the page where their address & phone number is. Call them. Explain the kitten is a stray and is in a lot of pain, why you can't keep it or afford medical attention, and that you need to find someone willing to help this poor little thing. If the group is too far away from you, they might be able to direct to someone they work with in your area:
Animal Rescue
If for whatever reason they are unable to help you or give you any kind of guidance, here two long lists of rescues & shelters in Pennsylvania. Scroll down and start calling the ones closest to where you live.
Pennsylvania Animal Shelters Pennsylvania Pet Shelters and Animal Rescue
One of them is bound to help you. You are a good person for no ignoring the plight of this poor creature. I wish more people would go out of their way to help as you have done. If you get a chance, let us know how it goes. Good luck.
