C section not healing

I had my c section a little over 7 weeks ago. The second week of healing I got a hole and it got infected and had two rounds of antibiotics that I took until about 5 weeks. The infection cleared up completely but the hole is coming back again. It’s not as deep and isn’t oozing or gross like it was before but I have no idea what’s going on! I can’t see my ob yet until I get my baby’s colic under control cause otherwise she will scream in the doctors office. If it starts to look worse I’ll be going to the er. It doesn’t hurt very much just a little sensitive as is everything still. I also got a heat rash all across my lower stomach and incision that I’ve been healing cause it’s super itchy. I’m also plus size so my stomach does hang over the incision. I don’t know what to do anymore