Dry Cough

Most conventional cough remedies suppress the cough reflex rather than treating its underlying cause. Coughing is a vital defense mechanism the body uses to expel particles, viruses, and irritants. Dry coughs are non-productive, distinct from productive mucus coughs. Sinus infections cause postnasal drip that irritates the throat and triggers the cough reflex, stemming from allergies, colds, viruses, or fungal infections. ACE inhibitors used for blood pressure are a well-known cause of persistent dry cough as a side effect. Indoor humidity below 30% dehydrates the throat and sinuses, irritating the vocal cords and triggering chronic cough.