Ovarian cyst question! Please help :)

LPO
Hello everyone! 
I believe I have an ovarian cyst on my right ovary. I thought I was experiencing ovulation pain but I am 3 dpo and the pain is still there. It has gotten better but is still irritating and uncomfortable.
Will the cyst go away on its own? 
How long does it usually take?
Is there anything I can eat or drink to help the cyst to go away?
Does every cyst rupture? (I don't think mine has since the pain is bearable)
If it does not rupture will it still go away?