Starlight, even epidurals don't work for every woman. I have heard this many times. I agree that a woman's need for pain relief should not be based on the extent to which she is dilated, but at the same time just whopping on the pain relief at full blast early on is often not beneficial and can lead to avoidable complications - I think that's what faye was saying.
There was a fascinating programme about pain management on the radio last night, where people in a setting with excellent (and sadly rare) medical support for chronic back pain are taught to manage their levels of pain - not labour pain, mind. But if good medical care can enable a frightened woman to manage her pain better in the early stages, and this results in less intervention at a later stage, the outcome will be better for the woman, wouldn't you agree? So surely it's not just a question of giving pain relief as soon as it's asked for, but actually the issue should be the overall standard of medical support for labouring women - both before and during labour.
Pain is frightening, I make no bones about that, but medical intervention does not come without its own complications. If a frightened woman in labour can be helped to manage her pain better and avoid those complications, why shouldn't she be offered non-medical support first? It's often fear which exacerbates the experience of pain, so dealing with those fears and enabling the woman to truly relax can transform her experience of pain.
I write this, by the way, as a woman who was absolutely terrified of the very idea of labour for 20 years. I put a huge amount of effort into tackling my fears before giving birth, and it transformed me. I frequently hear pregnant women saying that they're not going to prepare at all for the pain, they'll just deal with it when the time comes. I always find this extremely concerning and I wonder whether these women, being so ill-prepared, are more likely to suffer from the sorts of problems you're writing about than women who do prepare. Do you think that's possible?