Sinusitis (Sinus Infection)

Last Updated: July 3, 2026

Key Points

Swelling of the sinuses, often due to infection
Commonly follows a cold or flu
Usually clears up within 4 weeks
Self-care includes rest, fluids, and painkillers
Medical help needed if symptoms worsen or persist

Overview

Sinusitis is an inflammation or swelling of the sinuses, which are small, empty spaces located behind your cheekbones and forehead. These sinuses connect to the inside of your nose. The swelling is typically caused by an infection, often developing after a common cold or flu. When the lining of the sinuses swells, it prevents mucus from draining properly into your nose and throat, leading to a blocked-up feeling. While sinusitis is common and usually resolves on its own within about four weeks, certain treatments and self-care measures can help manage symptoms and speed up recovery. Management typically involves home remedies like rest and pain relief. If symptoms are severe or persistent, a pharmacist or doctor can provide further advice or prescribe medications. In rare, chronic cases, a specialist may recommend surgery.

Signs and Symptoms

Pain, swelling, and tenderness around cheeks, eyes, or forehead
Blocked or runny nose
Reduced sense of smell
Green or yellow mucus from the nose
High temperature
Headache
Toothache
Bad breath
Cough
Feeling of pressure in the ears
Snoring at night
Nasal-sounding voice
Irritability in young children
Difficulty feeding in young children
Mouth breathing in young children

Things That Increase the Risk

Recent cold or flu infection
Allergies
Smoking
Weakened immune system

Diagnosis

Assessment of symptoms by a pharmacist
Consultation with a general practitioner (GP)
Referral to an Ear, Nose, and Throat (ENT) specialist for persistent or complex cases

Treatment & Management

Getting plenty of rest
Drinking plenty of fluids
Taking over-the-counter painkillers (e.g., paracetamol, ibuprofen)
Avoiding allergy triggers
Not smoking
Cleaning nose with a salt water solution
Prescription steroid nasal sprays or drops
Antihistamines for allergy-related symptoms
Antibiotics (rarely, for bacterial infections)
Functional Endoscopic Sinus Surgery (FESS) for chronic cases

Prevention

Managing colds and flu promptly
Avoiding known allergy triggers
Refraining from smoking
Regular nasal rinsing with salt water solution
Maintaining good hand hygiene to prevent infections

Available Treatments

Explore our range of treatment options for Sinusitis (Sinus Infection):