Three weeks post blepharoplasty not healed. Yellow stuff coming out of lids (Photo)

You need to be patient.  Let this heal.  Adding sutures is not going to help close this.  The body needs to heal this.  Do not clean or manipulate the wound.  You may think you are helping but this merely delays the healing process.  Remember this is an active mobile area that moves when you blink and close the eyes.  That is why it takes time to resolve.  This will close.  It should have ointment on it because keeping it moist allows the skin to heal 5 times faster.  If the antibiotic ointment was a problem try bland ophthalmic ointment instead such as refresh pm.  This may or may not need to be surgically revised.  These areas have remarkable powers to heal an open wound like this.  If the would heals with a spread scar, this can be revised and it is relatively minor procedure.

Your wound opened here. In some patients the skin heals more slowly and can separate after sutures come out. I never re suture these.  It will heal in and 90% of the time you will see no scar.  If you do have a scar can revise at 6 months.  The yellow is not infection.   It is the color of the tissue healing, and will usually look sort of wet and yellow.   

Thank you for sharing your concerns. I am sorry to hear of the poor healing following your surgery. You need to be evaluated by your surgeon for possible infection. The scar will probably not be too bad, but can be revised if you are dissatisfied after several months. Good luck.