I hear ya mate, I know what thats like!!! if she is teething, you could try what I do with DS. only need to do it for a day or two.
At first I give panadol because it works quicker, then two hours later, give nurofen, then two hours after that give panadol. and continue for as long as you think she needs it in the day. Plus, I also give him SM33 to numb his gums. I think I only had to do this routine for about 2 days. Then panadol was enough. If its her first teeth they are often the most painful. I remember it being the worst week of my life! Big hugs and hope it gets better!!!!