I need some major help I have sprayed my moms house inside and out washed the Dog twice in special shampoo, Picked all the ticks off of him. and then took back 3 days later to her house and he's loaded with them again, How in the heck do I get rid of them? Aside from burning the lot house and everthing there down. I used the spray from the pet store the vet sold us the stuff that goes on his back and nothing works. now my dog is getting them also so I need to spray my house also.