Opinions please !!!!

I had my 2nd Csection October 10th. I had a spot at the end of my cut that became swollen & tender about a week ago. My husband & I were playing around & he grabbed me. It felt bruised at first then started to look like a blister. This morning it started oozing puss without me evening touching it. The swelling has went down since. Now it's a hole as you can see in the picture (the dark red spot). I do not have insurance until February so I don't want to go to the doctor for nothing. Has this happened to anyone else? Should I wait & see if it heals since it drained & is no longer hurting anything?