What To Do For Panic Disorder?

Hi, I believe I may have panic disorder. I was recently diagnosed with an anxiety disorder and put on medication to help with it. A few weeks ago, I had my first panic attack. I was hyperventilating, trembling, sweating, and felt like I was going crazy and detached. I have had multiple attacks in the past month, often in my bathroom and at my mother s work office. Because of this I have begun to avoid these areas like the plague. My doctor told me I had nothing to worry about, but I can t help but to feel scared of having another at school or in public. Any advise?