Before your departure for destinations, such as the tropical, subtropical and the developing countries, a traveler's health guide should be the most important preparation for you.
It is highly recommended that you visit a travel medicine institution at least 4-6 weeks before your journey in order for the health professional to have the ability to make the necessary tests and to utilize the appropriate vaccines on time, to allow the development of adequate immunity and as a result, to protect the traveler. If you visit the clinic only just a few days before your upcoming trip, you must be aware that you will only get the absolutely necessary vaccines as the doctors need to ensure the optimal immune protection under the given circumstances.
Another very important issue that you need to ensure is that you have travel insurance during your trip, in case you experience any health problems while abroad. In addition, it is also recommended that you have your first aid kit (i.e. anti-sickness, insect bites, minor injuries etc) with you while travelling.
Especially if you belong to some socially disadvantaged groups, such as the elderly, pregnant women and people with chronic health problems (i.e. diabetes, people with serious heart or respiratory problems, renal insufficiency, etc.) you should make sure that you obtain the medicines that you will need during your journey. You must also ensure that you organize the appropriate means for transportation for your trip. Finally, it is important that you have with you a doctor’s letter describing your health problems, current use of medicines and the medicine that you will need to take with you in order to address these problems.