write a application for leave as …

How can we write applications for a fever one day leave only? To, The Principal, ______________(name of school/institute in place of dashes), ___________(name of place where the school or institute is), ___________(name of District), _____________(main city, like- New Delhi etc "don't use this line if not applicable). Respected Sir, (use Ma'am if the Principal is female) I beg to say that that I am suffering from ________________(headache/high fever/jaundice/stomach ache or whatever disease/problem you're suffering from) since ___________(mention the time, like- last night or two days etc). So, I am unable to attend the school/class(in case of institute) today(mention the date also)/ from (Date:dd/mm/yyyy) to (Date:dd/mm/yyyy). Kindly grant me leave for ________(mention days you're going to be on leave, like- one day, two days 10 days etc). Thanking you, Yours faithfully, _____________(your full name), ______________(class with section which are in). Dated: dd/mm/yyyy (date of submission of the application)