Mole removed by shave excision/cauterized- is it healing or infected? (photo)

I got a mole removed 4 days ago by shave excision then was cauterized to stop some bleeding. I have been cleaning the incision everyday with warm water and mild soap, applying Vaseline and covering it with a Tegaderm Pad. There has been a small amount of thick, light brown discharge with a slight odor. The excision is located under the breast, and is very painful with any type of movement. I wondering if it looks like it is healing properly or looks infected?