We don't currently own pets but my primary aged children desperately would like cats of our own. They have fed the cats of friends whilst they're on holiday and we've discussed what's involved in caring for a pet and I'm confident they're committed. I love cats too but I know that they bring me out in an allergy effecting my eyes and nose. My question is, would I develop a tolerance to whatever causes the allergy from the cats if we were sharing a home? I don't suppose it's healthy to take anti-histamines forever but I think the opportunity to nurture a pet would be good for them. Any thoughts?