This case illustrates that some times acute treatment requires urgent supplement of constitutional remedy. The patient having pain from left renal angle to the umbilicus was given an acute drug ie Berberis Vulgaris. Sometimes the improvement may not be so significant with the acute remedy. But the satisfactory improvement was only 25%. The author then decided to start the constitutional treatment, which in this case was Causticum, where definite improvement was achieved to a level of more than 50%.