I had ptosis surgery (levator resection) almost exactly a year ago, and I my eyelid is still swollen. What should I do?

The eyelid height is essentially the same as before the surgery, and the contour is off as well. While I am not happy with the eyelid shape and height, my main concern is that there is still swelling on the upper eyelid. Also, even by just lightly touching my upper eyelid, it becomes red. I've seen multiple physicians, but nobody seems to know exactly what's wrong. On a side note, I do have some blepharitis (probably due to demodex) which I treat with tea tree eyelid wipes.