Catarrh

[Sarah]

An inflammatory affection of any mucous membrane, in whichthere are congestion, swelling, and an altertion in the quantity andquality of mucus secreted; as catarrh of the stomach; catarrh of thebladder.

[Renato]

Thick yellow or green [mucus] that [blocks] your [sinuses]

[Gregory]

Excessive discharge or build-up of mucus in the nose or throat, associated with inflammation of the mucous membrane.