Hiccough is usually caused by indigestion.
Treatment:
A few soda-mint tablets are generally helpful.
Nine or more swallows of water without breathing is a good old-fashioned remedy. So, also, is holding a deep breath.
If hiccough continues, mothers usually give children a cup of warm water in which is dissolved a half teaspoon mustard powder—to cause the child to “throw up” whatever is causing trouble in the stomach.
“Now, I see some of you shuddering,” laughed the nurse, “and no one can blame you, but sometimes hiccough becomes very serious, and it is better to take the nasty dose of mustard water than to endanger the heart’s action from hiccoughing. But just to console you, I will give some hints as to—
How to Stop Nausea (Sick Stomach)
Cracked ice[I] held in the mouth, and allowed to melt slowly is excellent.
Soda mint is good.