If it can not possibly wait, call as soon as the surgery opens. Emergency problems will be dealt with by the Doctors. The priority is given to people who feel really ill.
Alternatively, for out of hours services you can call the practice during surgery hours and we can make an extended hours appointment for you. You can also call 111 or in the case of an emergency dial 999
Note that the surgery is not a casualty department and there is no obligation to see anyone who could reasonably be seen with an appointment at a following surgery.