Help! Came back from holidays 7 days ago to find flea infestation across whole house. My cat was pregnant so had to treat her with Frontline as only one suitable for pregnant/weaning cats. I have treated the house 6 times with Staykill and Kill Fleas, vacuumed house 2 times per day for a week. We are still heavily infested but cat has had her kittens now so desperate to use more natural ways of getting rid of them. Painstaking and we are all being driven nuts! ! Help! What can we do? ! Thank you c