I Have a Persistent Sinus Infection That Won't Go Away

Chronic sinus issues are frustrating. Here is what could be behind them.

A sinus infection that will not go away is called chronic sinusitis. Most cases are from inflammation, not cancer.

  • Common causes include:
  • Chronic rhinosinusitis β€” long-term inflammation of the sinuses, often without infection
  • Allergies β€” ongoing allergic inflammation blocks sinus drainage
  • Nasal polyps β€” soft, benign growths that block the sinuses
  • Deviated septum β€” a crooked septum blocks sinus drainage on one side
  • Fungal sinusitis β€” a fungal infection in the sinuses, more common in people with weakened immune systems
  • Dental infection β€” a tooth abscess can spread to the maxillary sinus
  • Sinus tumor β€” rare, but a growth in the sinus can cause persistent symptoms on one side

What to Look For

  • Usually not serious:
  • Nasal congestion and discharge on both sides
  • Facial pressure that gets better with sinus treatments
  • Improves with antibiotics or steroid nasal sprays
  • Comes and goes
  • Worth having checked:
  • Symptoms that are always on one side only
  • One-sided nasal congestion with thick discharge
  • Nosebleeds from the affected side
  • Facial numbness or tooth numbness
  • Double vision or bulging eye
  • Swelling in the cheek or around the eye
  • Symptoms that do not improve with multiple treatments

When to See a Doctor

  • See an ENT doctor if:
  • Your sinus infection symptoms have lasted more than 3–4 weeks despite treatment
  • Symptoms are on one side only
  • You have nosebleeds from one nostril
  • You have facial numbness or tooth pain
  • You have swelling around your eye
  • You have changes in your vision

Clinical Guidance