Persistent nasal congestion, especially in the morning or at night
Excess mucus production and postnasal drip
Facial pressure or pain, often around the eyes, forehead, or cheeks
Difficulty breathing through the nose due to swollen nasal passages
Frequent sinus infections or recurring colds
Reduced sense of smell or taste
Morning heaviness or headaches after sleep
Chronic fatigue and daytime tiredness despite sufficient sleep
Brain fog or reduced mental clarity from poor oxygenation
Sleep disturbances caused by blocked nasal airflow
Coughing or throat irritation linked to mucus drainage
Allergy-related flare-ups, such as sneezing, watery eyes, or itchiness
Prolonged cold recovery times and increased sensitivity to seasonal triggers