My stepdaughter found 2 kittens in an abandoned house. We brought them home and one had a cold so I took her to the Vet and gave her antibotics, the other shows signs of constipation. I noticed a few days ago a puddle of vomit or feces with worms in it, and I consulted with a Vet and was informed that the kitten has roundworms. The Vet gave me a pill and I gave half of it to the kitten but its still constipated and strains and has not passed stools. Can someone tell me what I can do to relieve the constipation, I tried mixing mineral oil in food but it seems not to work as I was told by the Vet to do. The kittens are 2 1/2 months old and my kitten meows because she is not feeling too well. Need Help Here!!!