Swallowing granulated sugar
Swallowing sugar is believed to help with curing hiccups. The idea behind this is to ensure the vagus nerve gets stimulated after getting irritated by the sugar, causing an interruption or break in the spasms, that way the diaphragm relaxes and the hiccups stop. It is important to ensure that you do not attempt to swallow a whole cube of sugar to avoid choking. Instead, use granulated sugar to avoid the risks of choking.