Amanda-RaeHergesheimer

Hello my dog has been biting my family members frequently over the last couple of weeks. We got her from a rescue agency, she was a street dog in Mexico most of her life and acts out of fear and anxiety. We have had her for two and a half months now and her biting has got progressively worse. She doesn’t respond to treats or punishment, so it is hard to follow training instructions. Any ideas would be helpful. Thank you