3 Answers

Take a stool sample to the vet and find out which kind of worms it has. The vet will give you the proper medicine and dosage. The kitten will have to be de-wormed two times. Once to kill the adult worms, then a few weeks later to kill the worms that hatch from the eggs in the kitten. 

all kittens regardless have worms when born its normally passed through their Mum you should take the kitten to the vet and they will perscribe the correct medication for the age of the Kitten you normally tell if the kittens have worms they are thin and have bloated tummies the medication will be in a liquid form if you feel you cant give the medication ask the Vet to do this for you as they say normally put in food this does not always work as the kittens can smell this and refuse to eat it i dont blame them lol good luck please dont buy anything in the Super Market as the stuff they sell are far to strong for thier little tummys good luck with your new Fur Baby 

buy some de-worming medicine. Put the right dose  it in the moist, canned cat food. The kitten will eat it and voila ! No more worms.