Shane's brother arrived yesterday for a visit, and has been sneezing and wheezing ever since. We think it's cat-related (or the mattress in the spare room is fairly new, so it might be the chemicals they give off). I gave him some Zyrtec, but he woke up in the middle of the night feeling worse, and we thought we'd have to drag him to hospital. We might have to find somewhere else for him to stay until he leaves, the poor thing.