My son was affected by Nephrotic syndrome before 2years. after taking "prdnisoline" with reducing dosage he was recovered. now it was relapsed. again we took him to doctor, he suggested for taking the above medicine. it has been reduced to 5MG "Prednisoline" . he told it may be stopped after a month. Is it continues? Now hew is 11years old. Is The above said medicine is the only remidy for this problem? is it curable?