I use frontline and although my dogs are not necessarily afraid of it, they run the other way when they see me with it! LOL Once it's on they are ok, but my Dexter gets sick for a day or two after I put it on him. I started splitting an application between both dogs and making it go 6 weeks instead of 4. This seemed to work and he's more comfortable with it now.
Also, it's a wet feeling and dogs will try to dry off by running around and rubbing on things to get the wet off. Could that be what your pup was doing?
__________________ “Petting, scratching, and cuddling a dog could be as soothing to the mind and heart as deep meditation and almost as good for the soul as prayer.” ― Dean Koontz |