Check with your doctor of any need to have some form of vaccination. For example yellow fever, malaria, and hepatitis. Consult your doctor for medications. If you are on medication, ensure you have ample supply. Stock up medications for self treatment.
Medical bills are costly and being a foreigner can cause a delay in getting treatment.
Medications such as pills for headaches, tummy-aches, diarrhoea, motion sickness, vomiting, fever and even allergy should constantly be stocked. Not to forget the simple plasters. Carry appropriate clothing for the climate of the country. Too cold a weather can cause health problems for people not well prepared Take a health insurance coverage before travelling. Get your company to pay for it if you have to.