Hiccups are awful and when you have them a lont time at once, they are even painful. I have the perfect method to battle hiccups! but you need to be with 2 people for this.
step 1. fill a glas with water
step 2. either put your fingers in your ears so they are closed proparly or ask somebody else to close your ears for you. the pressure is what counts so it does not work with cotton wool or anything similar.
step 3. have somebody holding your glass while your drinking it with your ears closed. or drink it yourself when somebody is holding your ears closed for you.
step4. drink until you feel the pressure on your belly. you feel a bit awkward.
after this your hiccups should be gone. I have tried this a numereous amounts of times and it works. Hiccups come from pressure differences in your body. your ears are the most prone to pressure so this action will level out the pressure in your body. 6 years ago