Используйте «demulcent» в предложении

1. Examples of demulcent herbs include

2. Plantain is a demulcent that has been documented in two preliminary trials conducted in Bulgaria to help people with chronic bronchitis

3. Elecampane is a demulcent that has been used to treat coughs associated with bronchitis, asthma, and whooping cough

4. Mullein has expectorant and demulcent properties, which accounts for this herb’s historical use as a remedy for the respiratory tract, particularly in cases of irritating