Hiccups are gulping sounds caused by involuntary spasms of the diaphragm. The diaphragm is the muscle that separates the chest and abdomen and helps with breathing. Hiccups can be triggered if you eat too much or too fast, consume very hot or cold foods and beverages, or drink carbonated beverages. Other causes include cold showers, entering or leaving a hot or cold room, sudden excitement, and stress. . Hiccups are not a serious medical condition and usually disappear on their own within a few minutes. If they last longer than 24 hours, hiccups may be a sign of another condition or injury. You should see your health care provider if you experience prolonged hiccuping. . . Home remedies are usually the primary treatment for hiccups, although no one is really sure how well they work. Hiccup home remedies include sneezing, being suddenly frightened, holding your breath, gargling, drinking pineapple juice, drinking water rapidly, sipping ice water, or swallowing dry granulated sugar. These activities may help by altering breathing patterns.