ABSTRACT

Stephen is 10 years old. He loves to play football. He suffers from hay fever in the summer, for which he takes an occasional antihistamine, but he still has an itchy, runny nose that blocks up, and red, sore eyes. He always wheezes on running and is supposed to use salbutamol for this, but he usually forgets to take it. His legs become red and itchy when he walks through long grass.