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LisaNRuby · 07-20-2009, 05:37 AM

I found a dead flea in my bed this morning. I am assuming that it came from Ruby. I use Frontline Plus. I guess because the flea was dead that means the medicine is working. I have heard many people say that you should rotate flea medicines so the dog doesn't build up an immunity to it. I have not had that problem with my other dogs who have been on K9 Advantix for years. We have used the Hartz flea medicine on our outdoor cats and it seems to work well for them.

07-20-2009, 05:37 AM	#7
LisaNRuby Yorkie Yakker Join Date: Apr 2009 Location: Atlantic, Virginia, USA Posts: 67	I found a dead flea in my bed this morning. I am assuming that it came from Ruby. I use Frontline Plus. I guess because the flea was dead that means the medicine is working. I have heard many people say that you should rotate flea medicines so the dog doesn't build up an immunity to it. I have not had that problem with my other dogs who have been on K9 Advantix for years. We have used the Hartz flea medicine on our outdoor cats and it seems to work well for them.