Letter: Please excuse my son for/from being absent from/in your class yesterday

hi again please help my sister in checking her excuse letter.

"Please excuse my son for/from being absent from/in your class yesterday because she was suffering from very high fever and severe stomach aches.

Hoping for your consideration.

please check if this is correct. thanks you.

also please help us on how will we ask the school if she missed any quizzes and should take special exams.

thank you in advance.

“please excuse my son from your class yesterday because he was sick.”
~keep it simple
~there is no need to cram in space-wasting words just to sound suave
~you use ‘son’ but then you said ‘she’…which is it? (if he is a transvestite i apologize)

i’m glad you’re checking it before you send it. good lookin’ out

sorry he was sick is the word