Discard vacuum cleaner bags at least once a week. Fleas can continue to develop inside vacuum cleaner bags and re-infest the house. Treating Pets Your pet's first line of defense against fleas is a flea comb and a good bath. Soap acts as a gentle insecticide and helps control light infestations on your pet. Though time consuming, combing helps reduce the need for insecticides.
Flea combs have fine teeth that remove adult fleas from fur.
Dip the comb frequently in soapy water to kill fleas removed from the pet. Insect growth regulators, or IGRs, are a safe preventative treatment for fleas. These products work by disrupting the normal development of flea eggs and larvae. Because most IGRs kill only eggs and larvae, they do not eliminate adult fleas quickly. For this reason, they are usually mixed with a mild insecticide.