Sample 2: Elaborate

                                                                                                                Date: [Date]

From

[Your Name],

[Your class & section],

[School Name].

To

The Principal,

[School Name].

Subject: Request for leave of absence due to fever.

Respected Sir/Madam,

I am sick with a fever of [temperature] and other symptoms such as headache and muscle aches. I am writing this letter to request a leave of absence from school for [number] days, from [start date] to [end date]. 

The doctor has advised me to rest until I fully recover. I need to stay at home to get ample sleep and medicines. Attending school when sick will not only affect my recovery but could also spread the illness to my classmates and teachers.

I know the importance of regular attendance and apologize for the inconvenience. I promise to catch up on the missed lessons and homework as soon as possible. 

Thank you for your kind consideration and understanding.

                                                                                                           Yours sincerely,

                                                                                                             [Your Name].