Natu­rally effec­tive? Nasal irri­ga­tion with saline

Nasal rinses don’t look like much – but they’re very effec­tive. Reviews also show quite clearly that regular saline irri­ga­tion can noti­ce­ably reduce symptom burden in chronic rhino­si­nu­s­itis. In studies, impro­ve­ments in symptom scores are often in the range of about 20–30 %, accom­pa­nied by measur­ably better quality of life and less mucus conges­tion. Not a game­ch­anger over­night, but a measure with a solid effect.

What makes the diffe­rence in practice

For this to actually work, the way you do it matters. If your nose is blocked, it makes sense to use a decon­ge­s­tant nasal spray or drops before doing the rinse. For the irri­ga­tion, use about 150–250 ml of isotonic saline solu­tion per nostril. The simp­lest option is pre-portioned nasal rinse salts from a phar­macy or drugs­tore; you can also get suitable nasal douches or squeeze bottles there. Alter­na­tively, you can mix the solu­tion yourself (about 9 g of salt per 1 liter of water). The water is important: ideally sterile or boiled and then cooled to luke­warm. Lean your head slightly forward over the sink, keep your mouth open, and continue breathing calmly so the nasal secre­tions can drain properly. Forceful nose blowing is coun­ter­pro­duc­tive because it stresses the mucosa and can push fluid into the sinuses or the middle ear. So it’s better to blow your nose gently, one nostril at a time.

Unspec­ta­cular, but effective

The whole proce­dure isn’t parti­cu­larly elegant, but it works. Nasal irri­ga­tion can be used as often as needed. Symptoms usually improve noti­ce­ably after just a few days. Sea salt nasal sprays do not replace irri­ga­tion because they simply lack the neces­sary volume.

Hygiene also deter­mines how useful it is: prepare the solu­tion fresh, clean the irri­ga­tion device regu­larly, and let it dry thoroughly. When used correctly, nasal irri­ga­tion is a simple, inex­pen­sive addi­tion to sympto­matic therapy – and a good example of how a seemingly unspec­ta­cular home remedy can turn out to be surpri­singly evidence-based on closer inspection.

Peco­raro L, Di Muri E, Lezzi G, Picciolo S, De Musso M, Piazza M, Bosoni M, Indrio F. Nasal Irri­ga­tions: A 360-Degree View in Clinical Prac­tice. Medi­cina (Kaunas). 2025 Aug 1;61(8):1402.

By the way: This text is part of our series “Natu­rally effec­tive?”. In it, we take a close look at home reme­dies and similar approa­ches – focu­sing on what makes physio­lo­gical sense and has at least a bit of scien­tific backing.