Breast augmentation incision not healing, 9 weeks post-op -- what do I do? (Photos from week 1, 3 and 9)

It does look as if you have had a wound infection, though I can't see any sign of a more worrying, deep-seated implant infection. It is not really possible to give any clear recommendations on how best to manage this without seeing you in person and I therefore think you should get in touch with your surgeon to request an urgent review. Good luck

At 9 weeks, the inframammary incision has usually well-healed and I am sorry you are experiencing this complication.  As others have stated, the problem could vary from a minor wound infection to a deeper process involving the implant.  I would recommend following up with your surgeon for a re-assessment so that you can be properly treated.  Hope this helps and best of luck!