Can I give my 18 year old daughter Dilaudid if I have already given her a flexeril. This is for menstrual cramps and she is in severe pain. Our gyn said to try the flexeril this time around and it is not touching her pain but Dilaudid seems to help and at least allow her to sleep. We usually only need 1 does of this and it greatly helps, I am just worried about using it along with the flexeril. Thanks.