She is rubbing it with a warm cloth so I think they're doing it right? Is human baby formula bad for the kitten? They are diluting it in water to make it light like cat milk. They live on the ranch so the nearest Petsmart is an hour away. They didn't get a chance to go yet but plan to go there soon. What should they feed it until they get the formula? She said its very hard to care for, even harder than their baby brother. They have nursed to rescue kittens before and now they are both 1 year old and their dear pets, but this one is tinier than they were. I hope te kitten will be alright. They are keeping it inside despite their brother's cat allergies and their sister's asthma, a big sacrifice. Their other cats live in a small room they have built outside, but they are keeping the kitten inside because they don't want the other cats to hurt it, and they want to keep it as warm as possible.