Always use good quality condoms and carry them rather than try to obtain them at the last minute. Remember, condoms provide good but not complete protection. Alcohol weakens inhibitions and makes it easier to forget about precautions. Any person who on return has any reason to believe that they may have picked up an infection should get a thorogh check up at their local VD clinic. Intravenous Drug Abuse and Tattoos Drug-taking might put the traveller in contact with people who are HIV positive and should be avoided.
Needle sharing is very dangerous.
Unless you are absolutely certain that the equipment being used is sterile, skin-damaging procedures such as ear piercing, tattooing and acupuncture should be avoided. In many developing countries standards of infection control may be inadequate to prevent the spread of blood borne infections. Instruments may not be sterilized between patients and re-use of medical supplies, including needles and syringes is common. Travel packs are available from chemists and travel clinics, containing sterile equipment for use in an emergency. These kits should be supplied with a certificate showing contents and the reason for its purchase, useful for customs clearance.