I had a cold when I had my last c section. I mentioned it to my ob a couple days beforehand, and then the anaesthesist the morning of surgery. They said as I was having a spinal, there was no reason to postpone. I will give you a heads up though, coughing with a c section wound can be quite uncomfortable and a bit painful. I would use a pillow to push on my wound and support it when I coughed which did make it better. Good luck!!