I am having stones in both my kidneys (4&5mm). Doctor advised me to take pain killers and injection but it does not works, I feel pain while moving as my reports are saying that the stone is trying to come out of the kidney but still it's inside the body. I am flying back to home tomorrow afternoon but I am afraid if there is any pain attack during travel as my home is far from the airport, do I need to take injection at morning for the upcoming pain attacks for avoiding any risk.