Lurking in your wallet or purse may be an old EHIC or E111 card.
These cards - the European Health Insurance Card and its predecessor - allowed UK travellers to get limited cover for health issues when visiting countries in the EU and a few other countries like Switzerland, Norway, Iceland or Liechtenstein.
Now as much as the EHIC card was a useful – and free – thing to have handy when travelling abroad, it was never intended to be a substitute for travel insurance.