i wait till the sun goes down, light candles, then heat up my wheat bag with lavender oil and do the CD.
it does help with the contractions.
not as well as morphine, though , which has the added benefit of usually lowering my BP.
i remember it spiked up before some surgery and the anaesthetist setting up the canula then saying, hey, watch this! watch the BP monitor! and pushing in some fenatnyl.
the BP went BAM!