It really depends on how allergic ur husband is.  obviously he is allergic enough to have to keep the kitten in another room but i really think it is ok to keep him in a room but u also might want to change up the scenery everyonce in a while.  and it is good to go in and play with him but u can also let him out of the room when ur husband isn't home (unless he is tht allergic tht u cant do tht).  well good luck and allergy medicine will definely help.  (not tht u didnt already know tht)