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. In Argentina there is a traditional cure for a stomach ache. It is practiced by deftly pulling the skin covering the lower vertebrae on the back and is called tirando el cuero.
Source: http://www.lonelyplanet.com/argentina/health, https://www.factretriever.com/argentina-facts