Fleas are more than just a nuisance; they can cause serious medical problems. A few fleas can quickly become a full-blown infestation, which can be irritating and costly. The best way to fight a flea infestation is to make sure that it never occurs.
If you're using a flea preventive, use it year round. All pets in your house should be treated for fleas.
It takes much less effort to prevent flea infestations than it does to get rid of them.
For more information, please read the story How to Control and Prevent Fleas on Your Dog