Discomfort when clothes touch the Right.

I have been having burning and discomfort on the skin of the right side of my abdomen for the past 9 months, especially when clothes touch the area. I consulted many doctors, but none of them could give a clear answer. About a month ago, I visited another doctor who prescribed Carbamazepine (ZEN 200 mg). After taking it for 15 days, the burning sensation has improved by about 90%. However, the discomfort caused by clothes touching the area has not gone away. Earlier, I thought the discomfort was due to the burning, but for the last 20 days the burning is almost completely gone, and still the discomfort persists. The discomfort is on the right side of my abdomen and slightly towards the back. I wear very loose and soft clothes, but as soon as I remove the clothes, the discomfort immediately goes away. What should I do next? Please advise.”