Cat allergies and asthma

[Enderwhere]

DS has asthma and a lot of allergies to the usual things, cat in particular seem to really set off his asthma.
his dads partner is moving into his house soon and bringing her cat- I'm really worried about DS's asthma- it's currently somewhat under control but previously he has a lot of stays in hospital with asthma attacks. He gets wheezy when he's around cats and that's usually only for an hour or two visiting relatives.

will regularly (every other weekend) being around cats mean that he will become less allergic?
he does take anti hestamines already but they only help so much. Is there anything else I can do to help him/lessen the effects?
I have anxiety so maybe I am over thinking this but it's making me feel sick worrying he's going to have an asthma attack when he's at his dads now

My husband was diagnosed with atopic asthma following allergy tests. He is allergic to cats amongst lots of other environmental triggers. The specialist said cat allergies are triggered by the dander in their coat with some cats worse than others. We have a cat. He takes antihistamines all year round anyway and has no issues with our cat. I hoover every day and the cat is banned from the bedroom. We use a dehumidifier too which helps.

What a POS.

I hope he gets absolutely fucking irritated by the cat. I hope the cat damages all his furniture. Pisses in his bed. Hate him as an owner. Stink the house out. Knock things over. I hope your ex regrets it big time.
Every conversation you insert the fact that he chose a fuck maid and a cat over his children. If he continues to be unreasonable, just give him a taste of his own medicine.

Any communication about this, keep it in writing.

Ugh sorry you have to deal with him. Maybe this way he can get out of your lives.

WTF!!

My cat allergy sends me to A&E if I visit in a house with a cat, I'd never last a weekend. Antihistamines have no effect .

Dad is being ridiculous. Following his dick instead of looking after his child.

Just in case it helps there is a cat food (liveclear) that our cat eats that prevents asthmatic reactions in some sufferers. I know it won’t fix your inconsiderate ex but may help your son if you suggest it to the new gf x

Have his allergy tested to evidence the allergy and advise ex that if thus goes ahead you will have to refuse allowing ds over to that house and you are happy to take it to court if necessary