Is treatment explained to me the right one?

Hello doctor,

I had a C-section delivery before four months. After 15 days, there was a small wound and it got cleared after a month. Now again, there is some wound infection and is showing two holes. I am taking antibiotic Ciplox 500 and Vibact for the past two days and taking Clarithromycin 500 and Ciplox 500 along with daily dressing, which is full of pus. Now, my doctor advised for a surgery in which they will open and clean the wound and will not stitch again. Then, regular dressing will allow healing of my wound.

Is it the right way of treating my wound? Is there any complication in this surgery? In how many days or month I will get cured? Is there any chance of hernia in later stage? Will it be painful? What diet should I follow to get it cured?

Here is the MRI report for your reference, which was taken a month ago. MRI was performed on a 1.5 tesla whole body MRI scanner. Axial T1 and TSE T2 weighted scans of the pelvis were obtained and these were correlated with coronal and sagittal images. There is evidence of sinus tracts in the abdominal wall in the midline and granulation tissue is noted in the subcutaneous fat in this region. One of the sinus tracts is seen to extend into subcutaneous fat cranially superficial to the abdominal wall muscle. This tract extends for an approximate length of 4 cm. No collection is noted. Another small track is coursing through the abdominal wall muscle and is extending till the superficial layer of parietal peritoneum and small collection measuring 1.6 x 1.6 cm is noted in this region. This is located deep in the abdominal wall muscle and superficial in the peritoneal cavity. No intra peritoneal extension is seen and no free fluid is noted in the abdomen.