DS13 is suffering from horrendous hay-fever, as he does every year. Horrendous blocked/runny nose that prevents him from sleeping is his worse symptom. But he also gets itcy eyes and it triggers asthma attacks. GP prescribed fexofenadine two years ago, he could only have the 60mg tablets the first year but since last year has been allowed 120mg. We make sure to start taking them before hay-fever season kicks off, take them daily, use nasal spray, shower every night and have an air purifier in his room. It's just not working. He's been up all night with horrible symptoms. What can we do? I am so so worried about gcses in a few years time. He can barely sleep or function.