write an application to your principal that you are suffering from viral fever that's why you want 4 days leave ?
To
The Principal
ABC School
Address:-
SUBJECT : Application for sick leave
Respected Sir,
I beg to say that I am a student of class VI. I am suffering from fever since last night and my doctor has advised me to take rest for four days. So I shall not be able to attend the school.
kindly grant me leave for xx-xx-2018 to xx-xx-2018. I shall be very grateful to you.
Yours obediently
Name-
Class-
Date-