The invention provides for a device (10) for reducing dehydration of a patient, to a kit for reducing dehydration, to methods of reducing dehydration and to a device and method for delivering a medicament to a patient with a gas via tubes (76, 38). The device (10) also provides a measure of protection to a patients teeth and lip. The device (10) includes channels (20, 22) for receiving the patients upper lip and a front portion of the patients upper jaw and also includes a palate portion (18), the palate portion (18) having a moisturisable material (28). One of the methods includes positioning the palate portion (18) adjacent the palate (106) and positioning, adjacent the palate portion (18), one or more outlets (78) of a gas tube (38). The other method includes moisturising the gas prior to introducing it into the patients nostrils and/or mouth via tubes (76, 38).