Prediction for The Tiger rising

I'm in chapter 6 in The Tiger Rising where Rob has to stay at home for a couple of days because the principle thought that Rob's contagious thing in his leg would go away if Rob took a rest but the truth is that it will never go away. So I think that when Rob reaches home his father would get frustrated because if he told the school that it will never go away, Rob might be forbidden to go to school and if he did not say anything then Rob would have to stay at home. Maybe at the end Rob will have to be home schooled. Poor Rob