A further barrier to nasal delivery is the existence of tight junctions between epithelial cells in the mucous membranes inside the nose, which can prevent the penetration of large molecules such as ...

Just a few puffs into each nostril, and you're protected against infection from nasty cold viruses - that is, according to claims made for many nasal sprays. Can they really do this?Well, not directly ...

help clear your nasal passages. Laura Martin, MD, MPH And the snot and the mucus, they help keep our mucous membranes moist and protect them from getting dry and cracked. Michael Smith ...

There is a pair of sinuses behind the forehead, above the teeth, between the eyes, and behind the nose. The sinuses are lined with mucous membranes that have tiny hairs called cilia. The cilia ...

That’s a receptacle specially designed for nasal douching. 4. Steer clear of irritants. The mucous membrane that lines the nostrils and sinuses can be damaged by various irritants, including ...

A buildup of dust, pollen, or bacteria in the nasal cavity can hinder the functioning of the nasal mucous membrane and exacerbate allergies, said Hung Wei-cheng (洪偉誠), a doctor at Far Eastern Memorial ...