a pain in the ass!

Rosy
I have my beautiful baby girl yesterday morning ago. It was an 18 hour labour and due to the epidural and catheter I did not move from a sitting up position for nearly 24 hours (7.30pm on the 22nd to 6pm on the 23rd)
I tore quite badly during delivery, but that's not even bothering me, it's the severe pain I have in my bottom from being sat down and not moving for so long! Did anyone else get this? How long does it last and do you have any tips on how to be more comfortable, particularly when lying and sitting down?