Hi, I'd like to help you with your question.
It is good that your husband is willing to get help. His willingness to see his behavior as a problem is a good sign that he will get better. Half the battle in therapy is having insight into your own behavior and the other half is the willingness to work to change it so he is off to a great start.
From your description, it sounds like your husband is feeling overwhelmed and out of control. A therapist can work with him to help him learn to relax (physically and mentally) and learn to let go of those things he cannot control.
Your husband can see any therapist that has either a Master's degree or a Ph.D. A Master's level therapist will have either M.Ed, MA, MSW or LSW after their names. Some have additional licenses, either national or state level. The type of degree tells you what the therapist is trained in. For example, I have a M.Ed which is a Master's in Counseling. An MA has a Master's in psychology theory and a MSW/LSW has a Master's in social work which is the study of family and social systems. A PhD is someone who has a doctorate in those fields, mostly counseling and education.
A psychiatrist is a medical doctor that specializes in mental health related medications. Unless your husband is having trouble with his daily activities and his feelings are too overwhelming for him to cope, he most likely does not need medication. The therapist can evaluate him and they can discuss whether medications are needed and if so, what kind may work for him.
It is common to see a few therapists before you settle on one you feel will help. Finding a therapist you can work with is much like finding a good family doctor, it takes a few tries until you are happy and feel there is good communication. Here is a link to help give you tips on how to find a good therapist:
Also, you can ask around for recommendations. Ask your family doctor for a referral. Or, if you attend church, pastors are often good sources for referrals. You can also search through this site:
The more information you have, the better your chances of finding the right therapist the first time you try.
I hope this helps,