The best way to prevent allergic cough and congestion is to identify and avoid the allergen. Mostly in seasonal variation it is pollen or other kinds of seasonal allergen, so use mask whenever outside, avoid dust and smoke. Wash your hands well and maintain personal hygiene.
To strengethen gross immunity, maintain hydration, eat green vegetables, and eat citrus fruits.
Next Steps
Once allergic reaction has started, use tablet Montair LC 10mg one tablet after meal at night once daily for 7 days. If still persists, contact for personal consult as it may require furthure evaluation.