also: びせんじょう
noun
nasal irrigation; nasal lavage
Medical and home-care practice of rinsing the nasal passages with saline solution. The term is neutral and used in both clinical and everyday contexts.
花粉症の症状を和らげるために、毎日鼻洗浄をしています。
I do nasal irrigation every day to relieve hay fever symptoms.
鼻
For nasal irrigation, use a dedicated device and saline solution.