Is it prescription?
I think there is a prescription version but I just get mine right off the shelf.
https://www.walgreens.com/store/c/walgreens-24-hour-budesonide-nasal-spray/ID=prod6328689-product
https://www.cvs.com/shop/cvs-health-budesonide-nasal-spray-32mcg-120-dose-prodid-1170019