I would talk to your vet, just out of curiosity what heart worm potection are you using? I only ask because Ive used bothe Trifexus and Sentinal, they're birth control for fleas, they also protect against heart worms as well as other parasites. so imho I felt like its the best parasite control there is out there. But also the vets have a pill the will prevent fleas for three months which is a great thing to have especially during the summer months. |