Hiccups is a medical term used for involuntary contractions of the diaphragm. The contraction causes sudden closure of the vocal cords due to which s the characteristic "hic" sound is produced. It may happen due to a large meal, alcoholic or carbonated beverages or sudden excitement. In this case, hiccups terminate soon just in few minutes. In some cases, hiccups may be a sign of an underlying medical condition. So if you are consistently facing this problem then consult a good physician. He may help you to prescribe appropriate medicine like baclofen, chlorpromazine or metoclopramide. If needed the doctor may get help from surgically implantation of a battery-operated device to cause mild electrical stimulation of Vagus nerve.