What is this rash around my incision site? (Photo)

Based on this picture it looks like you might have a bit of infection and will need antibiotics, do not apply any ointments at this time continue to follow up with your Dr.

The redness indicates a possible infection of the skin i.e. cellulitis that should be treated with a mild antibiotic ointment or oral antibiotics.

Thank you for sharing your question and photograph. Based on the shape and appearance of the rash it appears most consistent with a contact irritation.  This may have been the result of a bandage, adhesive, or ointment.  I would gently cleanse the area with soap and water and moisturize with a thick ointment.  Bendadryl and topical steroids can also be used to good improvement.  Hope this helps.

Thank you for your question. It is difficult to assess without seeing you in person. Please see your surgeon or another surgeon for an in-person assessment. 

Based on your photos and history, it appears you have a reaction to something.  It could be related to the ointment or bandages or tape.  I would suggest 1% hydrocortisone cream to start.  If there is no improvement then a stronger steroid cream may be needed.