My 4 yr old ds came home from school on wednesday with a temperature, barking cough and headache. Spent all night burning up and coughing. Took him to the doc the next morning (yesterday) and just got calpol. He seemed to buck up and played all afternoon but then last night his temperature was higher than ever and he says his ears sore when hen yawns?? This morning he is still the same although wants me to play with him. Should i take him back to the g.p? He had the mmr last week and i can't help but worry that it's that thats caused it.