What could cause a red and blotchy neck, chest and face when nervous?

Autonomic nervous sy: Anxiety, anger and fear often can cause a response from our autonomic nervous system unleashing hormones, neurotransmitters which have body responses like flushing of the skin, sweating, increased heart rate, etc. It would be desirable to see therapist who understands the mind/body connection and could use cbt to help to deal with the underlying precipitants to the nervousness.