I appreciate your concern.your child is suffering from ADHD
,there are two modalities of treatment one is behaviourial therapy and other is medication.i advise you to get consultation from a psychiatist or pediatrician
.You need to be patient with your child.try to channelize him to some constructive work,teach him relaxation techniques
appropriate for his age,this has to be a team effort from his parents.teachers.
give him good balanced diet,avoid coffee,chocolate drinks as they contain caffeine.
hope your son will lead a normal life with your love and care.