Breast Implants Incision Reopened After Stitches Taken out

Wounds that are infected are usually best allowed to drain to minimize the potential for an abscess formation.

Yes, if the wound opened at this pont, it is better to allow it to heal naturally because technically the exposed area is contaminated.

2 comments.
The majority of plastic surgeons, myself included use buried dissolving sutures which do not need to be taken out. Leaving in external / removable sutures in for more than 5-7 days will leave permanent "train track" sutures. This suggests to me that your surgeon MAY not have been Plastic surgery trained.
I agree with Dr. Khoobehi. It is extremely uncommon for a breast augmentation incision to open after suture removal unless there are OTHER factors at play which impede healing ; infection, smoking etc.