What a big heart you have to rescue her! You are really great.
We also rescued a female. However, she's a big healthy german shepherd! When she first came to us, she was much like you describe your baby. Skittish and dribbling! I was very frustrated. But we worked with her a lot.
First, I would just be around her. No talking, yelling or other loud noises. Then we would say her name and give her a treat. So when she started to hear Ginger, she would look up and hope for food. Sometimes she'd get it, sometimes she wouldn't. I would also only give her food and water when I was around. I would take food and give it back. Timing their water is good in the begining so you kind of know when they need to go. Slowly, I would start to play with her and my other shepherd Diablo. I had to be very careful with this because Diablo would go Turbo mode when it came to ball time. So I got a couple balls and some other toys. I made sure to put her on a leash and take short frequent walks. That's easier with a big dog than with a yorkie, but same concept, you walk out first and always in front, you know the Cesar Milan stuff.
And in a short time, this paid off. We had no idea where she came from, but she was obviously beaten because she was scared to death of us at first. Ginger's been with us for about 15 months now and is doing sooooo good! It's like she was always with us. There is a ton of affection in my home for my big dogs, but there is also a lot of walks and discipline. My dogs come in the house and know they are to go to their respective beds and not move until they are given permission. Not for food, the doorbell, ANYTHING, until I tell them. Ginger learned this too. It just takes some work and patience.
Remember, you don't know exactly what your new baby experienced so even the good treatment you give her could feel weird to her.
Hope this helps, and best of luck!
Raquel---RIP baby Chu...
