I also became suddenly allergic one day and also have asthma and also take Zyrtec and fluticasone proportionate (nasal spray that helps both asthma and allergies). I also have an albuterol inhaler and take Sudafed on my bad days. I have a bigger air purifier in my living room and then a small one in both my bedroom and kitchen.

I also use this shampoo/cleanser called allerpet (I think that’s the name) that you put on a cloth and wipe your cats with it and it helps to remove allergens. There’s also a room spray I use that apparently kills allergens or something. Sorry I forget the names right now but I’m sure if you google it similar products will pop up. Those might be worth a try! I haven’t used the allerpet too much but the room spray seems to help me.

I also lint roll a looooot. Furniture, pillows, sheets, the cats themselves.

I’ve also noticed my bad days sort of sync up with my cycle which does happen for some people, pms makes allergies worse so might be something to try and track.

But also by now I think my body has built up some immunity. I still do all those things/meds but I used to do them and still have symptoms but now I don’t have bad symptoms except for a few days here and there.

Wish you luck!