Non-Allergic Rhinitis is a condition that causes nasal symptoms similar to allergies, such as a runny or stuffy nose, sneezing, and postnasal drip, but without an allergic trigger. It can be caused by irritants like smoke, strong odors, weather changes, or infections. Unlike allergic rhinitis, it does not involve the immune system reacting to allergens. This condition can affect anyone and may occur year-round or seasonally. Treatment often includes avoiding known irritants, using saline nasal sprays, or taking medications like decongestants. Understanding non-allergic rhinitis can help individuals manage their symptoms effectively.