Sorry to hear that. Did the doc say he’d sew it back up or that he had a plan other than keep packing it? Not sure if you’re in the US, but I know you can go to a wound care specialist. My mom had surgery on her stomach and it didn’t heal well and kept getting infected. She went to a wound care specialist once a week and they’d change the bandages, scrape out the infection and stuff. I think then doc might be better able to give u an idea on timeline until it heals, etc. hang in there! 

HI Gemma, I'm sorry to hear that. I've not experienced a wound infection so can't offer any wisdom, but i hope you get through it ok, I guess try and take each day as it comes, and hopefully it wont split again.  Sending support and strength to get through it xxx 

Hi Gemma I had an infection in the incision wound also. Mine opened in a number of places,had a massive hole in the middle that had a synapse to another opening. I started with a wound bag but things worsened and I had a wound pump put on it which was amazing. Had the pump for approx. 10 days and then had it packed every other day for a couple of months. Although the healing felt slow at the time it did heal well and didn't open at all again. However the nurses did keep stressing to be careful - no lifting etc. When it was beginning to heal I did try to take the dressings off each day and leave it open for half an hour while just lying on my bed - nurses advised this and it certainly didn't do any harm. Be warned will itch like mad when healing !!!!! Good luck hope it continues healing with no hiccups xx