This might not be feasible if you’re in the states but if you have access to good healthcare, go to an allergist and get the shots! I’ve always had cats and been allergic to them , I survived with an inhaler and prescription pills. Since I finished my shots last year I’ve felt 100x better. The only time I need my pills now for cats is when I visit my mom who has 5 of them, with one long haired orange boi that just needs to sit on your head.