don't be concerned yet. Given that this is a revision 4 weeks is still quite early. You will need to wait 3-6 months before you can tell for sure what this is going to look like. There is a very good chance that this will have a satisfactory outcome so don't be too nervous yet and do not be tempted to use scar gels or other over-the-counter remedies or things you may buy online to help yourself. You could make things worse so please the patient. I'll attach a video with some photographs of people healing.
Chase Lay, MD
Asian eyelid surgery specialist