DS has hayfever and under hospital guidance he takes:
2 x adult antihistamines per day (cetirizine or loratidine)
avamys nasal spray x 2 day
montelukast tabs one per day
sodium cromogliate (sp?) eye drops
brown asthma puffer 2 x day
blue puffe as needed
The asthma is a new development this year and is purely hay fever related.
DS is 9 and his allergies were confirmed by hospital blood tests, he is birch pollen allergic (and grass - but birch is what is bad at the moment I think) and this translates into food allergies too - but only oral symptoms.
Whilst I doubt a GP would prescribe all the above straight away you culd look each one up and then see what you want to ask the GP to try next - us saying it was affecting his school work as he was also sent out meant they really did agree to step up his meds and it has helped - he now just seems like a 'normal' hay fever sufferer rather than unable to function.
Staying in school at break times on bad days really helps, as does wearing shades at school (took them a bit to agree to it, but he doesn't like doing so as singles him out.
Also worth trying different antihistamines, until last year phenergan was our med of choice, didn't make him drowsy but did seem to help a bit more til others added into mix.
Really good luck, and poor him, it is so frustrating how debilitating it can be and how often it's impact is minimised