FIRST thing you need to do is contact the school and make sure they know this is going on! If necessary, go right to the principal and if possible put this in writing. Document what is happening with your son, names of any children you can get, this needs to be stopped NOW before it escalates any further.
Did the school do anything when your son was given the bloody nose? I personally don't care if it is 6 year olds or 16 year olds.....what starts at a young age, if not nipped in the bud, will continue to escalate as the children get older.....
Do the other kids know/understand that your son is ill and the reason for him to wear special clothing? Maybe an educational session with the teacher and children might be in order too.....
