Welcome to Yorkie Talk. The flea preventatives on your dog should stop the reproductive cycle of the fleas. Also, clean your home thoroughly. Vacuum everything possible daily. Car too if your pup rides in the car. Wash bedding and everything else that can be washed often.
I'm not familiar with the names you indicated. Are those preventatives or meds? My Teddy is highly allergic to fleas and all it takes is one to cause a whole lot of trouble. We have a spray medicine that helps soothe his skin and stop the itching.
I hope your little guy can get some relief soon.
__________________ Kristin, Max and Teddy |