Hi, I also suffer from LS. It's a miserable condition that not many know about. Due to other complications my Consultant first suggested that I be induced at 39 weeks.
I had initially wanted a home birth but read as much as I could about induction and also LS. Whilst there is very little out there in terms of information regarding LS and childbirth I decided that the possibility of a long and protracted induced labour with the potential for a cascade of intervention such as forceps, episiotomy and/or potential tearing (as it is sex is painful due to the existing scar tissue) was too much of a risk for me. My consultant has said that he has treated many women who didn't have problems with a vaginal birth. However I have also found comments from other consultants who have seen their patients suffer badly from a vaginal birth.
In the end any doubts that I have had about opting for a C-Section have been mitigated by my LS being fairly active throughout this pregnancy - it's bad enough trying to live with it on a normal basis without the added physical trauma of childbirth. In addition I am also keen to breast feed and I have read that BF can make it difficult for the LS to heal. In the end a C-Section became a no brainer for me.
Whilst I know that I will be in pain for a while with the C-Section and that it comes with its own risks - a vaginal birth in my case came with too many long term risks and I didn't want to end up with tears around my anus/uretha and vagina that may never heal again.
I have only my own body to go on and whilst the steroid cream works to an extent - it is not a cure and the LS comes and goes with varying frequency and aggression. On a normal day I feel as if I walk around with a 1000 paper cuts I don't need any more!
I believe there are some specialist LS consultants mainly in London, it might be worth having a chat with them first. I would consider how extensive your LS is too. Perhaps you have a mild case or you have caught it early. I was diagnosed after several years of being told it was thrush so it had taken quite a hold on me.
My C-Section is later this week and I feel confident that it is the right choice given my circumstances. I want to be a healthy mum who is able to enjoy her baby and child in the future - I would rather be restricted for the first few weeks than potentially restricted permanently.
Good luck with your pregnancy and I hope you find the right choice for you.