How does hick up go away?

Hiccups usually go away on their own as they are caused by involuntary contractions of the diaphragm followed by a quick closure of the vocal cords. Common remedies include holding your breath, drinking water, or swallowing a teaspoon of sugar, which may help reset the diaphragm. While most hiccups are harmless and temporary, persistent hiccups lasting more than 48 hours should be evaluated by a medical professional.