Bombing house?

Okay so I live in the south, like a really humid area. We have dogs and no longer let them inside, but seems like we have a flea problem now and we cannot get rid of them at all. I've also been noticing large water bugs (roach like bugs). We've already finished the nursery and washed all of the babies clothes and everything. Just wondering how to go about bombing the house? Will I have to re wash everything? Can I just cover the baby's things?