Normally, the sinuses produce mucus and drain it through small openings into the nasal passages. But in rhinosinusitis, as the disorder is technically known, swelling in both the nose and sinuses blocks that drainage. The result is a stuffed-up nose and an endless outpouring of green or yellow mucus.
The semicolon or semi-colon (;) is a punctuation mark that separates major sentence elements. A semicolon can be used between two closely related independent clauses, provided they are not already joined by a coordinating conjunction. Semicolons can also be used in place of commas to separate items in a list, particularly when the elements of that list contain commas.
This is what the Penguin's Writers Guide: How to Punctuate by George Davidson (2005) has to say about the semicolon: In introducing lists, a colon is used when all the options are specified, whereas a semicolon is used when only some of the possible options are mentioned: The Gauls were afraid of only one thing: that the sky might fall on their heads.