standard poodle with anxiety.

Question
We adopted a 1 1/2 old standard poodle in April. He joined a 7 year old one we have had since he was a baby. Aslan is very timid and is afraid of everyone and everything. One minute he is fine, the next minute he runs for his life and starts shaking somewhere in the corner.  He is doing fine with the other dog. He also keeps scratching himself until he bleeds. We have the medicine for that, and it seemed to work, but today he did it again. We have a big family and I am looking for help and advice on how to normalize him.Thank you in advance. Anna

Answer
I am going to have to answer this question when I get my computer up and running again.  I am using a friends computer because mine was damaged in a storm last week.  
This is an involved question and I want to give you the thorough answer that you deserve.  

I will get back to you when my computer is fixed.  

Kim