about shoes problem

After operation i had such a long time did not wear shoes already.I remember that the doctor ask me not to wear shoes because scare the friction occurs between my feet and my shoes.It may hurt me if i wear shoe.This told by the doctor during the checkup.And during my exams suddenly my school mathematics teacher told me i should wear my shoe since the wound had recover.And i tell her what had doctor ask me to do.Then she still want to tell my form teacher and ask me if doctor say so must have a letter from doctor.Then i'm in trouble with my form teacher.I tell the same thing to her also,and she said also must have a letter from doctor.I tell her that after exams during holiday i think i'll go.But i don't have time to be in hospital and i don't even can make my appointment during holidays.It must be full of patient.No time for that strictly.Still have to study to prepare not only for the last 2 trial paper of biology still have to prepare for SPM.
After the holidays,the first day i try to force my own to wear shoes.I feel discomfort for that whole day.Additional i still sit for my biology paper 3.Not only discomfort,inconvenient too because will walking friction happen between my feet and shoe.I have to be extreme careful so that while walking not so much and big friction happen on my feet.
Before this the mathematics teacher tell me that wear shoes is better because if your leg accidentally hit anything there is still have shoe to protect my leg.I know that so.But the probability is quite low compare to wear shoe friction happen.I can say that wearing shoe 100% of the probability friction happen and i feel like is breaking my leg.Suffer one whole day.I complaint to my mother and my mom said don't wear on the next day onwards.