Panic attacks are terrifying, as the term itself says people are "attacked" by panic.
Learning how to deal with panic attacks is not so easy.
When you are in the grip of one your heart is racing, you are gulping for breath, breaking out in a sweat and you feel that you might die, which obviously increases the panic and so the cycle continues.
Whatever trigger your panic attacks whether it is social situations, work or general anxiety, learning to deal with them is vital, they will not go away on their own.
As a former panic attack sufferer I found the following tips extremely useful:

1. Find out your triggers.
   Make a note of when you have or have had your attacks.
   Note where you had them, who was around, what had happened just before your panic attack, what you had eaten/drunk.
   By noting this down you may find a pattern, and it may not be what you expected, keep an open mind.
   Panic attacks can be associated with underlying medical condition so should always be assessed by your physician.
   
2. Being aware of panic attack symptoms themselves can help, at least you can tell yourself that it is a panic attack rather than a heart attack as people sometimes think it is.
   The symptoms are: racing heart, difficulty in breathing (hyperventilating), sweating heavily, headache, dizziness, nausea, and chest pain.
   No wonder some think they are having a heart attack! Being aware that you are having a panic attack, means that you can "ride it out" rather than trying to fight it.
   
3. Focusing your attention on something other than your panic attack will allow you to regain control, easier said than done, I know, but using relaxation techniques including breathing exercises can help as can yoga and meditation.
   
4. Changing your lifestyle can make a dramatic difference.
   Cut out caffeine (coffee, tea, some sodas - change to decaff.
   ) cigarettes, alcohol, drugs and excess sugar, they are all stimulants that can either cause or aggravate a panic attack.
   Include exercise in your daily routine, you do not have to do hours in the gym, walking or jogging to work or the shops can make a big difference.
   

In conclusion I recommend that you get a check up by your physician, change your lifestyle (long term not just a few days!) find out your triggers, if they are lifestyle issues change them, if they are social or anxiety related control them with relaxation techniques', do not avoid social situations this can lead to long term psychological problems.
Get support and regain control, it is not easy but it can be done, I know because I suffered from panic attacks for nearly 10 years before I finally learnt to deal with panic attacks.