Disclaimer

The first aid information provided by BBC Health is intended as general guidance only and is not a substitute for formal first aid training or for the medical advice of a doctor or any other health care professional. The BBC is not responsible or liable for any diagnosis made by a user based on the content of the BBC Health website. If in any doubt and/or where injuries are clearly serious, casualties should be referred to a doctor or hospital. The BBC is not liable for the contents of any external internet sites listed, nor does it endorse any commercial product or service mentioned or advised on any of the sites.