This is generally due to trouble in the inner ear, which affects balance and the detection of movement. Because of the connection between the ear and the vagus nerve – responsible for over-activity in the stomach – the conflict resolves itself by the patient feeling sick and sometimes vomiting. A person is more likely to suffer from travel sickness if the ear is slightly congested. Treatments would include Lymph drainage to the lymph nodes in the neck (See Lymphatic malfunction).
Shaitsu, Chi Nei Tsang abdominal massage and Interx can help to alleviate the problem. EFT (tapping) on various points helps with the sickness when present.