Yesterday I put some Hartz flea and tick drops on my Yorkie. She started acted strange almost immediatly. She has an extremem itch in the area that I put the drops. I bathed her and gave her some bendryl, but nothing seems to be helping. Here it is 4AM and I cannot sleep because of her distress. Can anyone help me out with this? One thing I have learned is to NEVER use Hartz products again.