Pain relief

A couple of days ago I had a bad fall off of my 16hh horse. I landed on my back on the left a bit and it still hurts. It's effected my other upper body muscles and my abdominal muscles. I can't seem to soothe the pain at the moment and I have had to have a day off of school too because I couldn't bare the pain of having my bag on my back or even lifting an object. My mothers a nurse and she has told me to try ibuprophen ( anti inflamitry) and paracetamol ( pain killer) hot water bottle, warm bath and to try and move the muscles. None of these have seemed to work so I am asking if you could give me any tips to get rid of these aches and pains please?? Xxx