Postnasal drip occurs when excess mucus from the nose or sinuses drains down the back of the throat. It can feel like mucus is constantly stuck in the throat and may cause frequent throat clearing, coughing, irritation or an unpleasant sensation while swallowing. Although postnasal drip can occur temporarily with a cold, persistent symptoms may be associated with conditions such as allergic rhinitis, sinusitis, nasal inflammation or structural nasal problems. Seeking appropriate Postnasal drip in Mumbai care can help identify the underlying cause instead of treating throat irritation alone.
Dr. Shama Kovale is a Senior Consultant at Kokilaben Dhirubhai Ambani Hospital, Andheri West, with more than 23 years of experience in ENT, laryngology, voice, swallowing and airway disorders. She also heads the hospital’s dedicated Voice and Swallowing Centre and has expertise in endoscopic ENT procedures, sinus surgery, ear microsurgery and cochlear implants.
Postnasal drip refers to mucus moving from the nasal passages or sinuses toward the back of the throat. The body naturally produces mucus to keep the nose and airways moist and help trap dust, allergens and microorganisms. Usually, this mucus drains without being noticed.
When mucus production increases or becomes thicker, or when normal drainage is affected, the sensation can become noticeable. Patients may describe a constant need to clear their throat, a feeling of mucus in the throat, coughing or irritation.
Postnasal drip is a symptom rather than a disease itself. Therefore, finding its underlying cause is an important part of effective treatment.
Several nasal and sinus conditions can contribute to excessive mucus or abnormal drainage.
Allergies can cause inflammation of the nasal lining and increased mucus production. Exposure to dust, pollen, mould, animal dander or other allergens may trigger congestion, sneezing and nasal discharge.
Sinus inflammation can interfere with normal mucus drainage. Chronic sinusitis may produce thick nasal or postnasal discharge, nasal blockage, facial pressure, reduced sense of smell and chronic cough. The reference clinical information also identifies postnasal discharge and cough caused by mucus irritating the throat as common symptoms associated with chronic sinusitis.
Viral infections can temporarily increase mucus production. Postnasal drainage may continue for some time as the nasal lining recovers.
A deviated septum can narrow one side of the nasal passage and contribute to persistent nasal obstruction or altered mucus drainage. In patients with recurrent sinus symptoms, identifying structural causes can be important for long-term management.
Nasal polyps are soft tissue growths that may obstruct nasal passages and sinus drainage pathways. They can contribute to congestion, reduced smell and persistent mucus-related symptoms.