How do you deal with a panic attack?

Meditation. Find a quiet place where you can be undisturbed for 5-20 minutes. Close your eyes and take slow deep breaths, inhaling through your nose and exhaling through your mouth. "hyper-focus" on listening to the sounds of your breaths, visualizing the air molecules entering and leaving your lungs. Practice this daily (or more frequently if necessary) for improving mental clarity and decreasing stress.
Relax. "relax" is a bit of humor, because when you are having a panic attack that is impossible. The "purpose" of a panic attack is to distract you from an emotion or memory that is very frightening. The best you can do at the moment is to treat the symptoms - breathe into a paper bag to treat hyperventilation, sit down if you are dizzy... It will pass. You need to find what is underlying- therapy.
Panic. Check out the phobia and anxiety workbook by bourne for advice on how to deal with panic.

Related Questions

How do you deal with undiagnosed anxiety/panic attacks?

See a psychiatrist. See a psychiatrist for comprehensive evaluation diagnosis and treatment. Many pharmacological and alternative medicine options are available. No need to suffer. Read more...
See a pro. I would strongly recommend getting a diagnosis and seeking professional help. Anxiety and panic attacks are no picnic and working with a professional will really help you learn strategies and techniques for anxiety management. Read more...

How do you deal with panic attacks when you also have ocd and trying to quit tobacco products?

People who have. Panic attacks are ok but often fear dying or some other catastrophic event. The fear of another panic attack becomes the real issue. Some therapists will even prescribe panic attacks to help the person see that they are ok and that the attacks are self-limiting. Please see a psychologist for support. Peace and good health. Please don't let this deter you from getting free of tobacco. Read more...