Moved houses to escape my allergies. Took me a few days to realise I'd brought them with me.
The new place was clean. My stuff wasn't. I felt genuinely better when I moved last year. For about four days, anyway. Then the morning congestion came back and I sat on the edge of the bed thinking what is the point. I had just upended my entire life to move somewhere clean and my body was doing the exact same thing it always did. Turns out the prblem came with me in the removal van.Your mattress and pillows have been collecting dust mites for however long you've owned them. A new postcode doesn't reset that. I genuinely did not know this and i wish someone had told me before I moved rather than after.
So if you're in the middle of moving, or about to be, do these things before the bedroom is set up. Hot wash everything at 60 before it goes on the bed. Open the windows every morning for the first few weeks because new homes trap more humidity than you'd think and mites need it to survive. And actually deal with the mattress because a normal hoover doesn't touch what's built up inside it. That was the bit i left too long. Im not saying this fixes everything. But movng is the one moment you have a genuine clean slate and it's really easy to accidentally skip it.