Argentina is a modern country with good health and dental services. Sanitation and hygiene at restaurants is relatively high, and tap water is generally safe to drink throughout the country. If you want to make sure, ask ‘¿Se puede tomar el agua de la canilla?’ (Is the tap water drinkable?).
Public health care in Argentina is reasonably good and free, even if you’re a foreigner. Waits can be long, however, and quality inconsistent. Those who can afford it usually opt for the superior private-care system, and here most doctors and hospitals will expect payment in cash. Many medical personnel speak English.
Bringing a signed and dated note from your doctor, describing your medical conditions and medications (with their generic or scientific names) is a good idea. It’s also a good idea to bring medications in their clearly labeled, original containers. Most pharmacies in Argentina are well supplied.
Travelers should be up to date on routine vaccines. For specific recommendations, see wwwnc.cdc.gov/travel/destinations/argentina.htm.
It's recommended to have your own health insurance. If you develop a life-threatening medical problem you may want to be evacuated to your home country. Since this may cost thousands of dollars, be sure to have the appropriate insurance before you depart. Your embassy can also recommend medical services.