I had mine 8 days ago now and I am feeling a lot better. Things that have helped:
Drink loads - if water isn't your bag take some peppermint cordial or something similar and just drink, drink, drink. Hospitals are hot and dehydrating and you WILL be constipated afterwards, both of which will make the trapped wind worse, so don't make work for yourself!
Take the painkillers before it starts to hurt - politeness stopped me asking for more in hospital - but only once!
Move around as soon as you can - if you thought you had swollen legs in pregnancy you ain't seen nothing yet. Never have I been so sweaty and puffed up in my life - in all the photos I look like an inflatable version of a Viz comic strip character.
Things that haven't helped:
Walking a little bit too far leads to great stiffness and pain later that day - you have to do ridiculously small amounts even though you feel fine, because you don't realise it's too much until it's too late.
Coughing or laughing. DO NOT GULP THE WATER I ADVISED YOU TO DRINK or you will be at risk of inhaling it and then choking just as the spinal wears off and you will feel like you're going to either herniate all over the floor, or just die.