Nasal irrigation is a process that involves flushing out the nasal passages with a saline solution. This technique helps to remove mucus, allergens, and other irritants, making it easier to breathe. It is commonly used to relieve symptoms of conditions like allergies, sinusitis, and colds. The procedure can be performed using various devices, such as a neti pot or a squeeze bottle. Users typically tilt their head to one side and pour or squeeze the saline solution into one nostril, allowing it to flow out of the other nostril. This method is generally safe and can be done at home.