If the incision initially healed and then became irritated, you might be scratching at the incision. Some browlift incisions develop numbness and itching. You might not even realize you are picking at it. The irritated wound might develop a secondary infection. This would likely respond to an antibiotic ointment but the key is to stop scratching. Sometimes medicines are needed to reduce the itching during the healing process. Best to discuss this with your surgeon. Best wishes Dr Falconer