I dont know what they would do to a Yorkie??
I was stung about 6 weeks ago and I thought I was going to die!! Nothing works either, not Benadryl, nothing. The emergency rooms will only take you if you have problems breathing. YOu just have to suffer for about 12 hours. My finger is still numb where it stung me. And once you get a colony established on your place or in the house, they are almost impossible to get rid of. By the way, the scorpion did not get away!!