What is this ? And should i be worried ?

So i got a breast lift , augmentation, and implants 3 weeks ago And last thursday i noticed a weird thing on my breast went fo hospital it was a hemotonion , well they put me on antibiotics , ive been noticing the underneath of this breast is having a hard time healing. It looks infected but im on antibiotics. Should i go back to the doctors . My surgeon is a joke i dont want to go baxk to him. Also it looks like some string is in the wound.