Flea medicine can be used pyrethroid insecticide of trifluthrin and deltamethrin, which has extremely strong touch and stomach poisoning effect, and the effect is fast, long lasting, can reduce the ground free flea index faster. It is easy to use, directly diluted with water, can fully play the effect, good dispersion, safe to animals, no irritating odor, no corrosive and destructive effect on the surface of objects, and also has a certain effect of killing eggs. Fleas are usually brought indoors from outdoors, pets, people, and rats are all transmitters, and there is also a possibility that the fleas are transmitted from nearby neighbors. To eliminate fleas, in addition to medication, you should also scald and disinfect everything in your home, such as clothes, bed sheets, covers, and shoes, if not, add more laundry detergent in cold water. The last thing is to spray, you can use insecticide to water spray in the room, corners, crevices, with the bed board, mattress between always flea infested places, can effectively prevent fleas regeneration.