HealthTips to keep you and your nose healthyTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoHealth03/18/2024March 18, 2024Healthy mucous membranes are our first line of defense against viruses. By following a few simple guidelines, you can help your nasal mucosa do its job properly.https://p.dw.com/p/4dJP4Advertisement