Dry coughs can last for weeks – Try These Home Remedies To Cure Dry Cough! Honey: Honey has antibacterial properties and can coat the throat, reducing irritation. Turmeric: Curcumin, a compound found in turmeric, may have anti-inflammatory, antiviral properties. Marshmallow Root: Herbs include marshmallow root. To relieve a dry cough, it is used in cough syrup & lozenges. Ginger: It has also been shown to boost the immune system and alleviate pain & discomfort. Masala Chai Tea: Cloves and cardamom are two antioxidant-rich ingredients in masala chai. Peppermint: It contains menthol, which helps to numb nerve endings in the throat that are irritated by coughing. Gargle With Salt Water: Gargling with warm salt water can help relieve the pain and irritation caused by a dry cough. Capsaicin: A compound found in chilli peppers has been shown to be a reliable source of reducing chronic coughing. Antitussive Cough Syrup: Cough suppressants work by weakening the cough reflex. Use A Humidifier: Dry cough can be aggravated by dry air. Humidifiers add moisture to the air, which can be soothing.