High Amylase Lipase level. Medication.

My father was diagnosed with Pancreastitis 3 months( 24/4/2018) back. His Amylase level was 255 and Lipase level was 160. We visited a doctor who prescribed him medications and regular blood test were conducted. His Amylase level came down to 221 and Lipase at 115 in nearly three months( 4/7/18). Then we visited him and he suggested taking a injection which will help in quick recovery. The injection was MEROSURE INJECTION 1G. Last week my father took 2 injection daily for 5 days via a channel. Today his reports came his Amylase level remained at 221 but Lipase level came down to 105. We are now considering to go for more specialist doctor in this field. I wanted to know if we should consider a specialist doctor for him or stay with the current medication.