To control fleas you must kill the adults on infested pets, and destroying eggs, larvae and adults in bedding, carpets, and furniture. This could involve treating pets with topical insecticides or treating both the pet and home simultaneously with insecticides. Pet bedding should be washed frequently and are carpets kept as clean as possible to eliminate food for the larvae. Infested furniture, such as couches or overstuffed chairs should be discarded. There is little evidence that feeding pets yeast, vitamin B12 or garlic will prevent flea infestations.