Has anyone found anything to help severe dust allergies?

[TitsalinaBumSquash]

My 7yr old DS has a severed dust must alert and also pollen.
He was under ENT because he cannot breathe properly though his nose at all due to it being so inflamed, he constantly has his mouth hanging open and makes so much noise when eating and struggles with lots of exercise.

He has had his adenoids out but that didn't have any effect and the surgeon said afterwards he thought that would be the same because the nada passages are so swollen due to inflammation.
His blood tests show his allergies (especially to dust) is off the scale high.

He's now been signed off by them because they don't feel they can do anymore, they said give daily cetirazine and a nasal spray (Avamys) but neither do a single thing to alleviate the symptoms.
We've also tried nasal rinsing but that doesn't help either plus DS has ADD and Dyspraxia so he can't cope with the sensory issues that come with water being sprayed up his nose.

We have done all the house things, removed carpets, Hoover twice daily, toys are in plastic lidded boxes, wet dusting daily, Dyson air purifier on daily, bedding all in anti allergy cases and washed/changed regularly. No soft toys apart from one special one that goes in the freezer.

Does anyone know of anything else? At 7 I can't imagine him living his life unable to breathe through his nose.

I think you need to rehome the guinea pigs op
sadly their bedding is very dusty.
any possibility of moving them outside?
if I remember correctly, your home is not ideal for your family. can you use these further health issues to get up the re-housing list?

I missed the other pets. sorry op
unfortunately allergy tests are generic and might not show up that dc is allergic to your pets.
I really think you should re-home them. it's miserable not being able to breathe properly.
(been there and have lasting lung damage due to allergic asthma)

The guinea pigs are all outside, we have many of them due to rescuing some not knowing they were already pregnant.

We're still trying desperately to be rehoused, I'm not sure the house itself is having any effect though, we've already ripped up all the carpets and the heavily smoking next door neighbours could happen at any house we live at.

My daughter has lots of allergies, asthma, eczema etc. She is on Fexofenadine, Montelukast, Symbicort and Avamys.

While Avamys usually keeps her nasal passages open enough for her to breathe at night, there are times when she gets so blocked that she cannot get any rest at night even whilst sitting up on the couch.

This happened few months ago and I took her to an E.N.T specialist who put her on Vistamethasone ( Betamethasone Sodium Phosphate) for
2-3 days. I used them before bed and my daughter got immediate relief and was able to sleep.

Vistamethasone are strong steroid drops that are put into the nose. They cannot be used for more than few days. But what they did in my daughter’s case is that they kind of corrected the situation whereby she began to respond to her usual dose of Avamys once she stopped them.

I do hope you are able to resolve the problem with your son. I know how hard it can get and I feel for your little boy and for you.