What can be done about social anxiety?

Behavioral Options. See this page of the Anxiety Disorders Assn of BC which contains educational and self-help tools (incl. a video) for managing and even overcoming social anxiety: http://ow.ly/EXlKf Effective treatment for social anxiety involves putting yourself in feared social situations, going from ones you fear only a little to others you fear a lot. A CBT expert coach can be big help!
Prozac (fluoxetine) Prozac (fluoxetine) -- an ssri (selective serotonin re-uptake inhibitor) antidepressant -- increases the levels of serotonin in the brain. Many of my patients have found that it takes the edge off of their social anxiety. Another particularly effective (and natural) treatment is holy basil (an herbal remedy that can be taken either daily or on an as-needed basis). Good luck!
It depends. Social anxiety is relatively common in adolescents and usually is not crippling and, beyond doing what you can to gain confidence is not worth treating. If it is severe and causing serious problems there are two complementary approaches: 1) a beta-blocker will decrease the response to the anxiety (so no one else knows), and 2) psychotherapy will help you find out what is causing the anxiety.