The following is a list of items you should consider including
in your medical kit – consult your pharmacist for brands available
in your country.
Aspirin or paracetamol – for pain or fever
Antihistamine – for allergies, such as hay fever, to ease the
itch from insect bites or stings and to help prevent motion
sickness.
Antibiotics – consider including these if you're traveling way
off the "beaten track". They are prescription drugs so you require
to see your doctor and remember to carry the prescription with
you.
Loperamides or Diphenoxylate "blockers" for diarrhea and
Prochlorperazine or metaclopramide for nausea and vomiting.
Rehydration mixture – to prevent dehydration which can be caused
by diarrhea. It is particularly important when traveling with
children.
Insect repellent, sunscreen, lip balm and eye drops.
Calamine lotion, sting relief spray or aloe vera – to help ease
irritation from sunburn and insect bites or stings.
Antifungal cream or powder – for fungal skin infections and
thrush.
Antiseptic such as povidone-iodine for cuts and grazes.
Bandages, band-aids or plasters and other wound dressings.
Scissors, tweezers and a thermometer (note that mercury
thermometers are prohibited by airlines).
Syringes and needles in case you need injections and local
medical services are not up to an acceptable standard. Ask your
doctor for a note explaining why you have them.
Cold and Flu tablets, throat lozenges and nasal
decongestant.
Multivitamins – useful when dietary vitamin intake is
inadequate.
(Tibet Travel Expert)