Get natural sinus relief for nasal dryness, post-nasal drip, sinus pressure and nasal congestion with the NeilMed NasaFlo Irrigation Device kit. Each of the 50 premixed packets can help relieve the discomfort of nasal symptoms associated with flus and colds as well as the irritation from dust, fumes, animal dander, grass, pollen, smoke and environmental pollutants.