My mama cat gave birth to 6 babies and all have died for one but I don't know what to do because its eyes seem to have nasty slimey stuff in them all the time. Please help I need to know what I can do for him since mama won't care for him. Thanks

Something is wrong if you have watched five kittens die and this one has a problem - could be anything. This kitten needs to see a Vet and so (probably) does its mother. The mother could be too young to care for the kittens; the kitten could be too sick to live.

I wouldn't stand there and watch another kitten die.

And it needs to be spayed.

As judy said, you need to take mommy and baby to the vet. Having more than one, maybe two, kittens in a litter die is a sign that something is wrong. Are you willing to just watch another kitten die, and possibly even lose the mother?