13. Do bear in mind, though, that many stomach upsets are largely preventable by following good personal hygiene1 practice and taking care of what you eat and drink.
14. Put together a comprehensive first aid kit2 to take with you and make sure it is tailored to the environments in which you are going to be travelling. That way you will know exactly what's in it and where to find each item.
15. If a doctor prescribes medication, be sure to take the full course. Some medicines require that you continue to take them even after returning home. Make sure you do this. A lot of people think that, simply because they are home, they are safe. This is not the case.
16. If you become ill once home, make sure that you