One thing you can do at home that helps is to hold a warm rag up to the eye and make sure it stays open and not gunky. If you do this make sure not to contaminate the other eye. If it is "pinkeye"that will only spread it. On another note: Do not let these people who are telling you if you cannot afford to go to a vet you should give your kitten to a shelter. How is that better for them? A cage in a no kill shelter vs. A warm and loving ( if not somewhat poor home) ?
If people waited until they could afford things no one would have children much less pets. I am a waitress who adopted 2 3.5 week old kittens that I have been bottle feeding. The woman I adopted them from did not ask me for a credit application. She knew that I would care for them and give them the best home I could. A good example is that one of the kittens was constipated. Did I run to the vet? No, I cannot afford it I gave him water and he is fine. I am not saying that if your pet is sick you shouldn't take it to the vet. I am saying that some of us do not have disposable income to run to the vet at every slight symptom. I know you would never risk a kittens long term health you are just looking for a natural remedy to save yourself the 100.00 vet bill. Good luck with your kittten!