Colic in baby 2. 15 months. The baby.

My daughter is 2.15 months old. She is been crying day and night from last 3-4 days. I saw burping related issues 20-25 days back but now it has become so serious that she is refusing to take milk and crying all the time. For 1 and half month she was exclusively on breast milk but due to certain medication I started giving formula DEXOLAC. Here are things that I have observed in last few days : * passing gas like an adult almost 20-30 times in a day from last 20-25 days. * crying in the evening from last 10-12 days * refusing milk * after hiccups she cries Consulted a doc who has given a drop COLPEP for colic Pls advice what can I do to ease the pain and also If colpep is fine for the baby .