I see your family cannot financially afford to have a pet right now but I can see tell you have a heart for this poor stray kitty. So, you may want to copy and paste this link then once on the page, scroll down to the links provided where certain organizations give medical help to animals even when you can't afford it.:
http://www.medhelp.org/health_pages/Pets/RESOURCES-TO-HELP-PAY-FOR-VET-CARE/show/535?cid=2
yes please take this poor little soul to a clinic or shelter to get some help asap......please!!!!!
Poor little kitten! What you are seeing is most likely fly larvae. There can be many, such as maggots, or one, called a warble. They rise up to breathe out of the air hole, then duck back down for safety. These larvae are definitely gross, but won't hurt you if you touch them or the kitten. You will need to take him to the vet for removal. It sounds like it would be easy to just pull it out, but it doesn't work that way. They anchor themselves in securely, and you would most likely kill the worm trying to get it out. This would cause an infection and abscess. If you are unable to keep the kitten, I would suggest maybe trying to give it to an animal shelter to get it some help.