Hi welcome to HCM.... According to history you might have acute sinusitis like respiratory infection.... You are taking cetrizine antihistaminic drug. ..for relieving congestion.... Take stream inhalation three times a day with eucalyptus oil added in hot water ... Avoid excess spicy and fried food as they can lead increased mucus production.... Paranasal sinus x ray taken for rule out sinusitis .... If symptoms severe antibiotic can be started .... Take one tsp honey with one tsp ginger juice. .. Take oxymetazoline nasal drop for three days ... If symptom increasing physical examination with auscultation necessary .. Take care ... Hope your concern solved. ..