Blisters on incision site? Allergic reaction (Photo)

Thank you for sharing your photograph and question and I am sorry to hear of your recovery difficulties. Because the areas of greatest redness are where adhesives, bandages, or ointments were likely placed after surgery, this appears to be an allergic reaction. Gentle washing of the area, intake of benadryl or oral steroids, topical ointments or steroid creams should all help alleviate your symptoms. Make sure you have close follow up with your surgeon to ensure steady improvement until complete clearance takes place. Hope this helps.

Looks liek a skin irritation from the photo however it is impossible to say for sure. Follow up with your surgeon. regards, 

It does appear that you have had a reaction to the adhesive in the steristrips. I have my patients take Benadryl or other antihistamines (like Claritin or Allegra). You could also apply benadryl cream to the red area but avoid the incision itself. If it doesn't get better in a day or two, I would suggest a short course of steroids. Just give your surgeon's office a call. They will give you his/her recommendations.