Sinus headaches are a condition caused by pressure building up in the sinuses, leading to symptoms like facial pressure behind the eyes. Your sinuses can become clogged from a variety of different conditions including illnesses like colds, seasonal allergies, and environmental irritants. Treatment for sinus headaches revolves around diagnosing the underlying cause of the pressure and treating it. At AFC Urgent Care Lyndhurst, our walk-in clinic offers patients near Lyndhurst, NJ with rapid same-day symptom ...