Call 111 if you need medical help fast but it’s not a 999 emergency, you think you need to go to A&E or need another NHS urgent care service, you don’t know who to call or you don’t have a GP to call, or you need health information or reassurance about what to do next.
Source: Emergency and urgent care services: NHS 111 service @ NHS Choices
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Photo: Monroe County Nurse Practitioner by WFIU Public Radio under Creative Commons license