J01.9

Clinical Causes: Viral infections, such as the common cold, are the most frequent cause. Bacterial infections can also lead to sinusitis, especially if symptoms persist beyond a week. Fungal infections are rare but possible, particularly in individuals with weakened immune systems. Allergic reactions, including hay fever, can cause sinus inflammation. Structural issues like nasal polyps or deviated nasal septum may obstruct sinus drainage. Environmental irritants such as smoke, pollution, or exposure to chemicals can contribute to sinus inflammation.

Key Symptoms: Facial pain or pressure, especially around the cheeks, forehead, and between the eyes Nasal congestion or blockage Thick nasal discharge that may be yellow or green Reduced or lost sense of smell or taste Headache that worsens when bending over or lying down Fever, sometimes mild Cough, which may worsen at night Fatigue and general malaise

Diagnosis Path: A physical examination focusing on the head and face to identify tenderness, swelling, or signs of infection Assessment of nasal passages using an otoscope to observe mucus or structural abnormalities Imaging studies such as X-rays or CT scans in persistent or complicated cases to evaluate sinus anatomy and rule out other issues Review of medical history and symptom duration to determine if sinusitis is acute

Treatment Protocols: Rest and adequate hydration to support immune function Over-the-counter pain relievers such as acetaminophen or ibuprofen to reduce discomfort and fever Decongestants to relieve nasal congestion, used with caution and for limited durations Saline nasal sprays or washes to help clear nasal passages Warm compresses applied to the face to ease pain and pressure In cases where bacterial infection is suspected or confirmed, a healthcare provider may prescribe antibiotics Addressing allergies with antihistamines or nasal corticosteroids if allergies are contributing Avoiding irritants such as smoke or strong chemicals