8 weeks post breast reduction; small pimple-like yellow discharge? Is this dangerous? (Photos)

I saw doctor a month ago. He said it was normal that stitches could come out months after surgery. But yesterday i noticed yellow discharge when i press close to it. No smell, no pain either. Now it just seems like it s a small hole. I am very worried. I put polysporin and cleaned it. Is it better to let it dry or with polysporin all the time? Is it an infection? I wrote to my doctor and should get an answer next week but for now I m not sure what to do... Help please...