Icy hot after a massage from my husband works really well.
Go and get a massage ;-) it'll ease the pain, and its the best way to relax. I'm a massage practitioner myself, so it is perfectly fine for you to get a massage and cannot cause labour, what many think...of you can't go to get a massage, Take a warm bath, and let your special one rub your back gently... Like circling around the area, and applying a bit of pressure. See if that helps. Take care hun ;-) hugs