Hope it works for you! A flea infestation is awful! You might want to sprinkle flea powder on the floor and sweep it so it gets into all the cracks between the planks, too [if you have a wood floor; otherwise, just make sure it gets into any seams and edges you have]. That will kill any shed eggs.

[Why yes, I have dealt with The Flea Infestation From Hell. Why do you ask...?]