They are all pesticides, so I use the minimum amount to be effective. Sentinel every 6 weeks for heartworm, spring through first frost, annual testing. Advantix II monthly, late spring through fall. The ticks are moderate here in NE, haven’t seen any fleas in decades. I also avoid woods and tall grass, I lost a dog to Lyme years ago, it wasn’t pretty.
It depends on the area you are in, regarding how aggressive you need to be, that being said, I am leary of the oral pesticides…..
I would defer to your vet.
BTW: Allergy testing done by a dermatologist/specialist is not inaccurate. My dog with environmental allergies is doing very well.
3 months ago
