I have to honestly say that my dogs have always been on Sentinel and now on Sentinel Spectrum (weight appropriate…they have one for 2 – 8 lbs. which all three of my dogs qualify) and, I don’t want to jinx them or myself, but none of my dogs have ever had fleas or any types of worms other then when they were first born and got their newborn worms from their mothers. The only dog I have ever had in my life that had fleas was the very first dog I had on my own and I lived in the city and had to walk around NYC and I didn’t know about doing any type of flea preventative. Cleaned him and had to flea bomb the apartment and have never had any fleas or worms again. I have lived in a number of states and cities and suburbs (I like to move…can you tell?) that are flea and tick central but it has not been an issue. No, I do not use topical neck type liquids. Sounds scary to me putting insecticide on the top of their necks so that they cannot lick at it and then allows it to get in their system. Yikes and Yuk!!! Just not my idea of a good thing.
