When allergens enter the body, the body reacts to them and sneezes.

The main reasons for this are as follows:

Causes of allergic sneezing
Dust mites: A reaction to microorganisms found in house dust, old books, curtains, and mattresses.

 

https://youtu.be/OeobWvtQoGE

Pollen: Pollen from plants, trees, and flowers enters the nose through the air (seasonal allergies).

Pets: Pet hair, saliva, or skin flakes reach the nose through the air.

Mold: Mold that grows in damp areas or on decaying objects in the house.

Air pollution: Smoke, perfume odors, strong chemical odors, and exhaust fumes from vehicles can trigger sneezing in people with allergies.

 

https://youtu.be/OeobWvtQoGE

Weather changes: Sudden cold or excessive humidity in the air can trigger allergic sneezing in many people.