Truffles took a poop this morning and his poop was COVERED in round worms. If I am not mistaken fleas can cause round worms if one is ingested. Is this correct? It would explain why he got worms since we've had this flea infestation. Luckily, it seems like frontline is working. The first few days after I applied the stuff, he was still covered in fleas, now I cant find one on him. Maybe it took a few days to kick in?? Anyhow, I've got this worm medicine that Breeze sent me awhile back. THANK YOU BREEZE!! But on the label it says not recommended for dogs under 5 pounds. He is 3 pounds. Lovely!! Is there a medicine I can find for him at his weight? Or should I say to hell with it and go to the vet? lol.