Hi welcome to HCM .
I assume that post surgically you must have hesitated in cleaning your eyes and that would have caused Blepharitis
All you need is a proper lid hygiene .
- give warm compresses twice a day(10mins) for a week
- clean the lid margins with Johnsons baby shampoo twice a day for 15 days
- consult your ophthalmologist for the need of Antibiotic ointment for topical application and Omega supplements.
It should heal with the above .If still persisting then you might require a course of oral Antibiotics
for the same. Avoid rubbing of eyes and stay healthy. Take care.