Despite receiving successful treatment for fleas, some fleas may still have time to lay eggs before they die. Flea eggs can mature into new fleas in as little as 14 days, so it is crucial to deal with them as well. The majority of flea products are only effective against fleas on your pet therefore, look up the right products that kill fleas and ticks, while also preventing flea eggs from hatching and infesting your home, thereby resolving both problems altogether.