Sinusitis
Inflammation of the sinuses that may cause nasal blockage, facial pressure, and headache.
Medical taxonomy
Diseases of the respiratory system
Taxonomy is used to organize content and does not represent a diagnosis.Common causes
Often a viral infection, though other causes exist.
Risk factors
It can follow a cold; severe or prolonged symptoms need review.
Red flags — seek urgent care
Swelling around the eye, vision changes, or an extremely severe headache.
Suggested next step
Monitor symptoms and seek review if severe or not improving.
Symptoms linked to this condition
Sources & review
Last reviewed: 2026-09-01✓ At least one verified Saudi source and one independent global source are linked.
This page is general educational information, not a medical consultation. If symptoms are severe or worrying, contact a healthcare professional.