7.  Are there any specific medications which best help the depression as a symptom of Multiple Sclerosis? 

I don't prescribe meds personally and don't like to comment on them because they are out of my area of training. It is always best to find a specialist who not only is a trained medical doctor, but one that also understands chronic illness.  Depression often accompanies chronic illness, so it would be important to address both. One effects the others, so finding the right medications may take some time. Be patient, be informed and make sure you have a good team working with you.

 
8.  Do you have any suggestions for MS patients who also suffer from anxiety due to their disease? 

The lack of control over your life from chronic illness can leave you feeling depressed, but it can also surge anxiety. Cognitive Behavioral techniques are really great at reducing panic. Learning how to "talk to yourself" and move through issues can help diminish anxiety. Acknowledging what you can control over what you cannot control puts the focus on your strengths, not your weaknesses. It is also noteworthy to watch your caffeine and chocolate intake as such foods can raise heart rate and blood pressure. Big no-no's if you are feeling panicky or anxious.
 
9.  Any advice on how to cope with the cognitive effects of MS including memory loss and difficulty processing information?

The cognitive fog that comes and goes with MS or any other chronic illness does produce challenges. I think using tools like journaling, making lists or even using recording devices can help you in such moments. I also think it is important to be assertive and self-confident, letting others know that you are having a rough time today and need them to repeat what they just said.  "I have MS and I am having a hard time understanding you. Could you say that again to me?" People are very flexible and accommodating when you inform them of your difficulties.