So never had fleas before so I'm a bit out of my depth. Went to the vet got topical flea remover and dewormer, went to the store and Got Natural Care Flea and Tick Remover spray and carpet powder. I sprayed it on the pillows and headboard and then powdered the carpet, I kept the cats away from the rooms I was treating but they snuck up there when I was moving the vacuum and walked up there after I was done vacuuming the powder, I dont know how much they got on their paws and now after researching I've seen some pretty awful stuff and now I'm second guessing everything and freaking out a little. I just wanted to give them relief...they've cleaned their paws since and now their sleeping. Will they be okay?