Sick Notes
For absences of 5 or less working days - employers are responsible for providing and completion of self certification forms for members of their staff.
The doctor will only give a sick note if you are going to be absent from work for more than five working days.
If your Employer requests a doctor’s sick note for absences of 5 working days or less there is a fee payable, as this comes under the heading of Non NHS work. A list of fees is available from here.