Holy Basil (Tulasi) possesses potent antihistamine properties, which protect against pollen-induced bronchospasms. Holy Basil is used in catarrh (mucous membrane inflammation of the respiratory tract) and bronchitis due to its varied pharmacological usages.
Licorice (Yashtimadhu) has antitussive, expectorant and immune-enhancing properties that are helpful in relieving cough.
Honey (Madhu) is traditionally used to treat cough, due to its anti-inflammatory properties, which soothe the respiratory tract. It inhibits the production of nitric oxide, which renders the herb its antioxidant property. This action is helpful in alleviating allergic respiratory disorders.