My 4 years(close to 5 years) old has leg pain. He had fever last three days and we give Motrin to control the fever. He has no more fever now, but he could not able walk. His right leg is paining. Perticularly he is not resting his toe on floor. He generally complaints leg pain when he is normal. Doctor said it might be growing pains, just massage will help. He had fabulous seizures when was about 2 years old. That time also after fever gone he could not able to walk. We went to emergency and doctor asked us to stop giving motrin as there was no more fever. He became normal in about two days. From that time onwards we scare when he gets high fever. Particularly when he has temparatures like 104F and 105F. My main question, does ibrufine causes any kind of muscle pains like this?