Well, so far so good…we haven’t seen a flea and the dogs are calm and only scratching occasionally. I think this is more from the irritation left from the flea bites as we have both checked them all several times and have not seen any fleas yet. It feels so good to know they are more comfortable, it was horrible to know they were being bitten and itching like crazy. They don’t even mind us checking them constantly, as they see this as belly rubs and love attention! I’ll keep you updated.