01 · What it is
What sinusitis is
鼻窦炎 · 鼻渊
A blocked nose with facial pressure and thick yellow or green mucus often follows inflamed sinuses (hollow cavities in the skull). That is sinusitis: 鼻窦炎, named 鼻渊 in TCM.
As the mucous membrane secretes more mucus, it swells and the nose blocks. Signs include a reduced sense of smell, a stuffed nose, headache, and facial pain. Excess mucus can flow back into the mouth, so some people also cough or feel a sore throat.
High fever, severe facial swelling, sudden vision change, or breathlessness needs urgent or ENT care.