Ovarian cysts resolve????

I am 30 and 4 years ago I had a Total Abdominal hysterectomy due to pre cancerous cells on the exterior of my uterous. On monday night I had my mom drive me to the ER (and was admitted) because I had unbearable pain in my right side and I thought it was my appendix. After a CT scan (the one with the dye) they determined that I had a 4cm Cyst on my R ovary. I am still in ALOT of pain. I cant sleep, eat, walk or sit with out crying it hurts so bad. I have been to the ER and they tried to give me a shot of medication that I am allergic too. I have also been to my Dr again and he assured me that it would resolve on its own in a few months. I have 2 small children 8 and 7 and cannot afford to sit on bed rest until it goes away. What should I do?