Aimsmum - first, want to say how sorry I am that you and your dd are going through this. It is so hard to see your little one in pain, and I can't imagine going through it as many times as you have. I hope there is a solution that can provide both of you with some relief.
Marina - dd just turned 4. We have been lucky to have avoided ear infections in the past. Poor little one is really suffering at the moment. I've got Calpol (dosed her up an hour ago), and Nurofen too so will attempt to stagger as you suggest. As I mentioned, last night she was awake every hour (worse than when she was an infant!), and I was able to soothe her a tiny bit with a microwaveable heat pack wrapped in a towel which she used as a pillow...but it didn't help much.
Sounds as if this is a problem that you just get through the best you can, and that there really is no immediate/surefire cure. Sorry to hear that you're enduring this too.
Our doctor made it sound as if it is good for the eardrum to burst to relieve the pressure and drain the fluid. Can that be right?