When I was at school I used to get ear ache caused by too much wax. The school nurse used to warm olive oil slightly, pour it into my ear and then put some cotton wool in - then I slept like that. It seemed a bit strange but did work.
DD1 just had her first ear infection the other week. Heat helps, and we did the calpol and nurofen at 2-hourly intervals. One other thing, we were told to keep the ear dry while she has the infection. OK, I know it seems silly now, but just incase you were thinking of giving her a bath or shower tomorrow
Ibuprofen and paracetamol can be taken together- obviously don't exceed the doses. Earache's like toothache and hurts a lot. Don't lie on side as pressure on the ear hurts. Take her to docs for exam and antibiotics in morning.