Comfortis flea medicine Has anyone that any side effects while using comfortis flea pill? I have only given it to him for 1 month, he didn't get sick or anything but i've been noticing hair loss on his front and back legs but it's like in the arm pit of his legs? It could not have anything to do with the comfortis maybe it's an allergy but just wanted to see if anyone has used this flea medicine. I dont know if i should continue using this particular brand or use a topical flea? |