Simple breathing and swallowing tricks that calm the diaphragm and stop a hiccup spell.
Take a normal breath in, hold it for about 10 to 20 seconds, then breathe out slowly. The mild buildup of carbon dioxide can settle the diaphragm. Repeat a few times if needed.
Take several small, steady sips of cold water, or drink slowly from the far side of a glass while leaning forward. The swallowing rhythm helps reset the irritated nerve.
Breathe gently in and out of a small paper bag for a few breaths, keeping it loose around your nose and mouth. Stop if you feel lightheaded, and never use a plastic bag.
Swallowing a teaspoon of granulated sugar, or sitting and hugging your knees to your chest, can interrupt the hiccup reflex.
Most hiccups pass within minutes. If they last more than 48 hours, keep returning, or interfere with eating, breathing, or sleep, see a doctor, since persistent hiccups can signal an underlying condition.