Leave your shoes at the door, so pollen doesn't get tracked inside; shower after spending time outdoors, so you don't take pollen/mold spores to bed with you; use an air purifier; wait until after 11 or 12:00 to open your windows, as pollen counts are highest in the early morning hours.
Do a lot of research on food and keep a log of foods that you reacted to.
You can try eating a tablespoon of honey 🍯 from your local area once a day as it has the pollen from the different fauna in your area.🥰
My allergist just put me on my allergy medicine and Pepcid 3 times daily for my itching!
Dandelion tea, quercetin, slippery elm all can help with seasonal allergies