Sickness Certificates (MED3 notes)
You do not require a doctor's sickness certificate for any illness lasting six days or less. Your employer may, however, require you to complete a self-certification form SC1 which is available from your employer.
For any illness lasting longer than six days you will need to see the doctor for him/her to issue a sickness certificate. Please telephone the practice if you require your sick certificate to be extended, as often this can be done without needing an appointment.