Sample Letter from Father to School Headmaster Requesting For Sick Leave

To
The Headmaster,
(School Name)
(Address)

Dear Sir,

My son, ____________ (Son Name) who is studying in class ____________ of your school, has been suffering from ____________ (Disease) since last evening. The doctor has advised him complete rest for a few days. I therefore, request you to grant him leave for a period of one week from today.

Yours faithfully,
(Your Name)