what did you think about social anxiety disorder?
I dont know much about social anxiety disorder. 
It means a fear about social situation, which cause distress and makes us unable to function.
Can people get help for social anxiety disorder?
Yes, they can. But, it involves more social inhibition.
Can they get professional help?
Not only professional help, they can support our individual feelings.
What else can you tell me about this disorder?
Personality disorder
Personality disorders (PD) are a class of mental disorders characterized by enduring maladaptive patterns of behavior, cognition, and inner experience, exhibited across many contexts and deviating from those accepted by the individual's culture. These patterns develop early, are inflexible, and are associated with significant distress or disability. The definitions may vary somewhat, according to source. Official criteria for diagnosing personality disorders are listed in the "Diagnostic and Statistical Manual of Mental Disorders" (DSM) and the of the "International Classification of
Anxiety disorders Social anxiety disorder.
Social anxiety disorder is an anxiety disorder consisting of overwhelming anxiety and excessive self-consciousness in everyday social situations. It is an extreme fear of being scrutinized and judged by others in social and/or performance situations. This fear about a situation can become so severe that it affects work, school, and other typical activities. Social anxiety can be related to one situation (such as talking to people) or it can be much more broad, where a person experiences anxiety around everyone except family members.