Oozing at 14 weeks?

Adria?
I had a c-section in December (for reasons I still don't know) but right after I started having this really foul smell and my Dr insisted it was ok. Now my baby is almost 4 months old and I still have that smell and a spot on my incision that has come open several times is oozing white/ yellowish pus and is puffy. Anyone else have this happen? If so why?