inflammation of the mucous membranes of the sinuses is called
Sinusitis Sinusitis (or rhinosinusitis) is defined as an inflammation of the mucous membrane that lines the paranasal sinuses and is classified chronologically into several categories:[10]
Stomatitis Stomatitis is inflammation of the mouth and lips.[1] It refers to any inflammatory process affecting the mucous membranes of the mouth and lips, with or without oral ulceration.[2]