It is recommended that you go to a regular hospital to check for allergens.
Generally, it is more appropriate to seek treatment in the ear, nose and throat. Blood tests can be done to rule out nearly twenty common allergens; skin prick tests can also be done, which can detect more or less allergens.
After detecting allergens, try to avoid contact with them to reduce the number of recurrences of allergic rhinitis.
Wish you good health!
^Up is the allergen