Hi Raider. I can empathize because i go through the same thing on a daily basis. My therapist taught me relaxation techniques to help calm me when i am feeling a flash comming-I also keep my Klonopin on hand :)

When I was at work and got triggered, I took bathroom breaks. I would go in the bathroom to calm myself down and tell myself I would deal with these feelings when I was back home and safe. If you can't get out of class to go to the bathroom, then do some exercises at your desk. I find taking deep, slow breaths can help me get centered. You can also do some soothing self-talk (silently of course). Sometimes I place one hand on my solar plexus (our power center) and helps bring me back to myself. Blessings, Dancer.

I agree with the relaxation techniques.

You might also try and shift your focus to something else...trying to tune them out in a sense...if you can't get out of class.

Start doodling on paper, writing out the thoughts in your head, drawing a picture, reading a book, singing a song in your head.

ask your doctor maybe you need antidepressants.

Hi Raider. School was always tough for me, too. Not only the worry about reacting to something someone said, but the extra anxiety of what other people would say or think if I did. I know where you're coming from.

What I did in school was draw. I would bring blank paper and draw through most of the class that was worst for me. I made sure I was paying attention, though, because the teachers LOVE to call on you when you're drawing!
Kids sometimes made fun of me because I was always drawing, but I was glad they had that to focus on and not something worse. And as a side benefit, I became a decent artist!

Maybe that will work for you, too. I hope so. Whatever you do, though, definitely stay in school and learn all you can while the learning is free. With good grades you can choose a college and profession that you'll enjoy, and maybe one day you'll make a difference to a young person going through what you are now.

Of course, thinking of your teacher walking around in a clown suit or frog costume can help, too...

when i was in high school i just sat through it and kind of drifted off into my own little world. in college if i get too triggered i just walk out of class until i can get control of myself again.

I will try and remove myself mentally from the trigger. One comment suggested writing which works for me. Have a few topics prepared mentally you can shift your thoughts to such as sports, your parents, a hobby, etc. and think about those topics instead.
Also learn to self talk positives to yourself. The "yes I can" get through this can work if you really concentrate.

Writing and drawing worked for me and still does. Sounds like every one has great ideas. i think I have used all of them in school. ...Going out to the bathroom always helped me. So does breathing deeply but i didn't do that at the time.

I would say recognize that you are triggered, which you have and out it n a place to take it out later and write about it.

Drawing can also work for me.But during those moments I think DesertDancer is right take a bathroom break splash some water on your face do some deep breathing and take a med if nessecary.I take seroquel 25mg one to 3 a day then some at night for sleep.That helps more than anything.Also easier said than done is to think of a place you feel relaxed and go there in your mind.It can be hard to turn off the PTSD brain so it takes practice.I hope that helps..

oops forgot, also another thing my concelor recomended was humor, like for example with me in a crowded grocery store someone triggers me, I picture whats around me and make belive I threw it at em or picture them tripping and fallin on their ass...Creul I know but it is just a thought unless you act on it lol..Can be a help at times, at others like me I laughed at a funeral trying the humor way ...not good lol

Thanks everyone these have been helping A LOT and not just in class. Thank you so much.