Hello POISERs, I hope you are doing well and never admitting defeat POIS.
as a POISer, I know how desperate POIS can make someone. Everything is worth a try with this awful syndrome. I'm writing this because you might find it silly to do one of these things. one of them may help you tho.
1- raise your Chin up for a while. You can use support it while standing (with your hand or a neck support) or you can lie down on your belly with your back facing upwards and put your chin on a pillow or two till you feel comfortable (I personally prefer this, It's weird how this position makes me relax and want to asleep)
2- breath from the right nostril and block the other one for at least 30 mins (I read about this technique in the naked scientist forums)
3- anesthetize your palms even when you having regular Sex.. you can use lignocaine cream
Check side effects and contraindications with your doctor ( Don't ask me how this might help, just give it a try
)
Good luck!