Family Pets: Myself, Curves

Need Advice on Pets

I am at a loss at what to do with my cats, here is a little background. I havve 3 cats, ages 7-3, I have 3 children ages 5,3, and 4.5 months old. My three year old we found out is allergic to cats and is on medicatons everyday, with out his meds he starts to cough alot and needs his inhaler. Our children are very attached to the cats. For many months now our cats have been using my formal dinning room as their litter box. we have done everything we can think of to make this problem stop, special litter, putting a litter box in the room,...