I grew up with cats, and at about 8 years old developed a horrible allergy to them. I used to suffer terrible nosebleeds that at 1 stage lasted for days. And terrible itchy eyes, red, swollen eyes. Itchy skin.As well as the constant sneezing. At the time I was prescribed Triludan. Which I think was one of the 1st antihistimines on the market. As i grew older just dusting set it all off.
At the time we had 4 cats, I remember it being breifly discussed and dimissed us getting rid of the cats. You just learn to live with it and you learn how to handle the symptons. Later on in my early 20's I developed astma.
You can grow out of it. And you can develop an immune system to it. I did. I also learnt to wash hands regular. And not touch my face after handling them.
Since leaving home, On 2 seperate occasions have had a cat. And again built up an immune system both times, and again wash hands.
My own son, has also developed an allergy, and has learnt how to deal with it from him being 2 and at 4 years, We got a cat - sadly no longer with us.
Our whole family except us, has cats in 2's or 3's. Lol I would never dream of asking them to get rid.
At the moment I cant be bothered with one, but may well get one in the future.
We have a dog, who's whiskers I am allergic too and a indoor rabbit who I am also allergic to.
Personally ged a grip, get over yourself and please let your son go round. And get him some tablets.