Before requesting a sick pay form please read the guidance given by HMRC

https://www.gov.uk/government/publications/the-fit-note-a-guide-for-patients-and-employees

Then you can fill out the form online for your employer for the first 7 days of you illness.

Then book a telephone consultation or face to face with one of our clinicians.

https://www.gov.uk/government/publications/statutory-sick-pay-employees-statement-of-sickness-sc2