Nasal dryness can occur due to various factors such as dry climate, air-conditioned environments, colds and flu, age-related changes, nasal surgery, certain medications, and the use of oxygen or CPAP machines. This nasal spray is designed to alleviate the discomfort associated with nasal dryness in these situations. The inclusion of sesame seed oil, rich in Vitamin E, provides additional benefits as a natural antioxidant and moisturizer, helping to nourish and protect the nasal passages. Overall, FESS Dry Nose Oil Nasal Spray seems like a helpful solution for individuals experiencing nasal dryness, offering long-lasting relief and moisturization. However, as with any nasal product, it's essential to follow the usage instructions provided and consult with a healthcare professional if you have any concerns about your nasal health or if you're unsure whether this product is suitable for you.