Sorry to admit, but my poor Sammy has also fallen victim to a Hartz Flea and tick collar. I removed the collar nearly a month ago when I noticed my cat doing a lot of scratching. Upon closer inspection, I noticed the entire area around his neck was broken out and raw.
He is still scratching and I don’t have enough money righ now for a trip to the vet.
Guess I’d better stick with the high dollar flea drops from the vet.