Determine if your pet is infected with tapeworms. Look for evidence of tapeworms by inspecting your pet's rear end and stool: tapeworm segments are small, white and flat, resembling grains of rice.
Avoid using over-the-counter de-wormers. Most of these products do not contain the ingredients necessary for killing tapeworms.
Make an appointment with your veterinarian to get your pet de-wormed.
Know that treatment is simple and in most cases extremely effective. Your pet will be given either a drug or an injection that kills tapeworm and doesn't cause side effects.
Understand that controlling fleas is important for managing and preventing future infection (see the related eHows "Prevent Worms in Dogs" and "Get Rid of Fleas.")
How to Treat Tapeworms Provided by eHow.com