You should use the NHS 111 service if you urgently need medical help or advice but it's not a life-threatening situation.
Its open 24/7 every day of the year and is free to call from mobiles and landlines.
Call 111 if:
The NHS 111 service is staffed by a team of fully trained advisers, supported by experienced nurses and paramedics. They will ask you questions to assess your symptoms, then give you the healthcare advice you need or direct you to the local service that can help you best.
Have a read of our NW London 111 FAQ here