It is essential your kit contains a strong antiseptic, masses of rehydration powders, treatments for fungal infections and a variety of other medicines. Each day you should carry out a leech, cuts and grazes check. Leeches need to be carefully removed and the wound immediately treated with antiseptic. Cuts and grazes - no matter how small - need to be cleaned, disinfected and covered with a dry dressing. Any open wound can turn into a chronic tropical ulcer if not treated properly. Areas prone to fungal infections (armpits, groin, feet) need to be kept as clean and dry as possible with constant washing with soap and a liberal dusting of talc after drying - a Compact Towel is ideal for this as it can be used for washing and drying plus its rot-proof qualities mean it is resilient to bacteria. Use a good anti-fungal powder if you are already infected. Your expedition leader will advise you what to take in your medical kit.
Some Jungle and tropical regions of the world are the home of the most life-threatening insect-borne diseases. Mosquitoes are your main problem and ticks or chigger fleas can also cause some tropical diseases. Rigorous bite avoidance measures are essential as part of your daily routine. Ensure you take enough supplies for any travel off-the-beaten track keeping in mind re-application is frequent. Keep repellent on you at all times.