Need help, I need to write a letter to my son school to extension his medical leave.
The medical leave given by the doctor was only one day and due to his toes got cut and with difficultyof walking and climing, I would need him to stay at home for any other few day.

Thanks & Regards
Dear Sir/Madam:
My son recently injured his foot (feet) and his doctor gave him a one-day medical leave from school. He is still having problems walking, so I am requesting an extension of his leave for XX days for him to recover at home. If you have any questions, please call me at XXX-XXX-XXXX