My father has constipation from his early age, he is been using several medications in allopathy as well as ayurvedic after consulting many doctors. Till date he is managed some how using these medications. But now from the recent times he is suffering a lot with this problem. He is getting anema done himself  to pass the stool twice in a week. Please suggest that can we do anema every week or it is harmful. Please also give us solution for this problem.