Question: how many times a day can you do a saline nasal rinse?
Answer: How Often Do You Use Nasal Wash? Using a saline solution just once a day can help thin mucus, curb postnasal drip, and clean bacteria from your nasal passages. It can also wash out allergens you've inhaled. After their symptoms are gone, some people find three times a week is enough to keep them symptom-free.