Outside surgery hours, a recorded message will give you a telephone number, which you should ring for medical assistance.
NHS 111 is a free -to-call , non emergency , medical helpline operating in England. This service is part of the country’s NHS telephone triage and advice services.
NHS Walk in Centre
NHS walk-in They deal with minor illnesses and injuries. http://www.nhs.uk/NHSEngland/AboutNHSservices/Emergencyandurgentcareservices/pages/Walk-incentresSummary.aspx
999 : For life-threatening emergencies