Thank you for all the information.
There is a bacterial infection likely.
You can continue to use Tobradex.
It has both antibiotic & steroid.
Steroid will help to reduce the inflammation & swelling.
If you do not see more improvement in next 2-3 days, I would suggest to take a review by doctor.
A swab can taken for test, culture.
I hope this information helps.
If there’s anything else I can do, please let me know.
If you are satisfied, please rate my answer as good or excellent.