Why do I have a runny nose year round

What can I do to stop this yearly runny nose

It may be allergic rhinitis due to pollen allergies. Year-round airborne allergens cause perennial allergic rhinitis. People with pollen allergies often develop sensitivities to other troublemakers that are present all year such as dust mites. There is no easy way to avoid pollen but staying indoors when the pollen count is high may help a little. Also try to increase your immunity. See below link: