Endometriosis & Hysterectomy? I have been diagnosed with endo 3 yrs ago?

I have suffered, tremendous pain and upset. I have had two courses of Zoladex, with no success. To add to my pain and sufferring, I had a large cyst on my overy, which subsequently both where removed. I also suffer from abnormal cells and have had LETZ procedure removing CIN 3 cells. What i would like is a something that will help with my pain and upset. Would a hysterectomy help??? Any help or advice is greatly appreciated.... Thank you for your time and help....