Well, this is a tough one.... I would say that massage and counterpressure help a bit. The water helped me- shower, bath, hot , cold, etc. Water was my saving grace. I am not sure about TENS units. I didn't use it last time, but have heard they help. Moving positions help, but there came a time last time when I couldn't get into any position that helped. Ugggh. I think have all kinds of ideas and possibilities to ease the pain and then remember that it will pass when the baby comes out!