Multiple Stones in Gallbladder. Months?

Dear Respected Dr, My wife gave birth to a baby in mid of December 2023, the baby is currently 2 months old. She started feeling pain in the back and upper stomach recently, we did USG and found that there are multiple stones in the gallbladder. We consulted Urology in pune, he suggested we try medicine for at least 15 days and let's see how much progress is there. She ate medicine just 2-3 days. Later 4th she got unbearable pain in back and upper part of stomach so we took to Laproscopic surgon for advice. He suggested that gallstones generally won't dissolve we need to do surgery only, he told we will wait if your body responnd well or need to do surgery. Issue is our baby is only 2 months old, he doesn't digest formula milk and start vomiting if we try some time. I need expert suggestions here, having few query 1. Is it possible to dissolve gallstones?? 2. If she goes for surgery, what will be the post effect of lactation? 3. Is it possible to extend surgery for next 4 months?