General Practitioner Ellie Cannon noted that a musty taste in the mouth can point to infections in the nose, throat, or the paranasal sinuses. Such a taste may also arise from tonsil stones, which are calcified clusters of food particles, mucus, cellular debris, and microorganisms that accumulate in the tonsillar crypts.
Medical professionals explain that the nose, mouth, and sinuses sometimes host pathogenic microbes. Bacteria and viruses can trigger conditions that produce both a foul mouth taste and a noticeable odor from the nose, especially when the upper airway is irritated or inflamed.
Another possible source of the distinctive musty flavor involves debris, mucus, bacteria, and shed epithelial cells gathering on the tonsils. These formations are often referred to as tonsillitis plugs or tonsil stones. While the exact process behind stone formation remains unclear, many people report more plugs after a cold or viral infection. Otolaryngologists frequently advise a combination of medication and physiotherapy to relieve symptoms and prevent recurrence.
In some cases, a persistent musty taste may accompany other symptoms such as sore throat, bad breath, nasal congestion, headaches, or swallowing difficulties. A clinician can assess signs of infection, obstruction, or other issues in the throat and sinuses and discuss appropriate treatment options, including hygiene measures, medications, or minimally invasive procedures if needed.
People experiencing ongoing changes in taste or new nasal or throat symptoms should seek medical evaluation to rule out infections, sinusitis, or other conditions. Early care helps manage symptoms, reduce discomfort, and prevent potential complications.
What stomach illnesses might cough indicate? A careful medical history and, if necessary, targeted examination can help determine whether a cough is related to a stomach or airway issue. In clinical practice, doctors consider several possibilities, including reflux, infections, allergies, or postnasal drip, and tailor treatment accordingly.