Mirena helps with endo. I had mirena put in about 5 months ago which directly affect uterus by suppressing estrogen, and I also take pills to deal with adenomyosis. My pain is almost controllable now, still has bleeding once a month with some pain. I don't have to take pain killer though. I changed my diet to include mostly organic food but I stil eat sweets and drink coffee and eat meat. I am still thinking about a surgery because I don't like to take so much hormones. But I also get adhesions from surgery and that will cause more pain. When you put in a MIrena, it might hurt a lot for a few weeks or more, but pain should go away. I recommend Mirena, but use your own judgement and do a lots of reaserch on Mirena on your own before makig a decision.