Devices, systems and methods are provided for symptoms in patients, such as postoperative symptoms following major surgery and/or for treating patients in critical or intensive care. A device includes a patch having an adhesive surface for adhering to an outer skin surface of the patient and comprising one or more electrodes. An energy source is wirelessly coupled to the electrodes and configured to generate at least one electrical impulse and to wirelessly transmit the at least one electrical impulse transcutaneously from the electrodes through the outer skin surface of the patient to a selected nerve in the patient according to a stimulation protocol. The stimulation protocol includes administering at least one dose of about sixty seconds to about 5 minutes each day for a plurality of days. The doses may be administered before and after the patient’s surgery, or while the patient is being treating in intensive care.