Plastic surgery or fillers for this lip deformity post cyst removal?

You are only 1 week after your procedure.  The area will conitnue to heal and change over the next few weeks and months.  I would not recommend doing anything until you talk with your ENT.  I would let it heal for a while before exploring other options.  

At this point in time I would do nothing. Your surgeon can take a look in two days time to let you know how you are healing. It is very early and highly likely that much of the distortion of your lip is resulting from swelling and trauma to your lip. This will improve significantly with time and, if indicated, small injections into the scar tissue. I know it's very difficult try to be patient over the coming 8-10 weeks and you will likely be pleasantly surprised. Stephen Weber MD, FACSDenver Facial Plastic Surgeon

It is too early to accurately assess what deformity you will have as your lip is still swollen, this may take several months as healing is a process and you need to be patient.  You can create more problems if you jump to do things too quickly...stay in contact with your surgeon for advice.