Diarrhoea and Vomiting

Vomiting is the forced emptying of the stomach through the mouth ("throwing up"). Diarrhoea is the frequent passage of liquid stools.

Last updated 5 January 2025

Both occur together commonly due to viral or bacterial infections of the gut. They may also occur due to food intolerance and as side effects of certain medications such as antibiotics.

How to treat at home

Drink more water or clear fluids such as clear soups to prevent losing too much water. Avoid foods that may worsen the diarrhoea, such as coffee, alcohol, spicy, fried or fatty foods, and dairy products like milk and cheese
Do not take solid food until vomiting has stopped
Diarrhoea and vomiting can be treated with over-the-counter medications, such as charcoal and oral rehydration salts. Speak to your pharmacist if you are unsure how to take the medication, especially if you have any allergies, other medical conditions or are currently on other medications

See your pharmacist if:

You need further advice on how to manage your symptoms. Your pharmacist can also recommend other medications for your condition or advise if you need to see a GP, or visit the emergency department

See your GP if you:

If your condition gets worse or does not get better in a few days
Have vomiting that affects your ability to eat and drink
Have high fever of 38°C and above that persists for more than 3 days
Have recently travelled to countries with poor sanitation

Go to the emergency department if you are experiencing:

Have severe stomach pain
Have severe dehydration, (e.g. you feel very thirsty, giddy and weak)
Have blood in your vomit
Have bloody or black sticky stools