Quote:
Originally Posted by Magnus  I use Sentinel for the heartworm and fleas. I used Advantix II for the tick but I think the ticks are becoming resistant to it. I've been hearing that some areas, certain tick/flea repellents are becoming ineffective. Maybe you should ask some of your neighbors that have dogs what they use and their experience? |
I had that problem with Frontline and I know others in my area have as well.