Many of you are aware of DS allergies and the lack of knowledge about his allergens.
Also have been pleased to report back recently about how well he's been.
Yesterday he had a blister on the roof of his mouth and I thought nothing of it although it was clearly annoying him! In bed last night he was coughing (unusual) and kept doing it for about 20 minutes. Not a breathless cough but unusual iyswim?
Suddenly he ran into the lounge in a panic saying he didn't know what room of the house he was in and he was confused.
I asked what he meant and he kept saying he couldn't work it out and was scared. He was also scratching his leg and back, leg mostly, his voice was croaky (but could have been from where he'd been sleeping) and he kept having this cough. (almost like a spasm).
Now he had no hives and couldn't see any obvious swelling. I checked his leg which had a huge blistery type thing on it.
To be safe I gave him AH which did settle him, stopped him scratching and coughing. He slept really well (I didn't!) and apart from a nosebleed when he woke - he's never had one before - seems fine and the blister has gone. 
Now I've been told AH won't harm him if I'm unsure (has raised eosinophil count) but just having the usual flounder about whether I'm reading into this too much or not.
Any thoughts?