Is severe swelling after Restylane lip injections common? How long does it last? (Photo)

This swelling will settle down in a day or so.  Take a deep breath.  Don't assume that you need to have this adjusted.  I do not think you are overfilled.  Restylane is the right product for this.  Now you mentioned that only a half of a syringe was used.  If this doctor has stored the other half of the syringe for later use by you, I recommend considering that product a loss.  Once a syringe is opened and used, there is no way to ensure the sterility of what is left in the syringe.  For that matter, unless the doctor runs a tissue bank, the office does not have safety protocols in place to ensure that the open half syringe you get in the future is actually your syringe.

Dear salmokl,Juvederm has significant swelling post injection. I would follow up with you plastic surgeon but typically I tell all my patients to wait a full two weeks.  Generally at 2 weeks they are happy and glad they didn't dissolve.  Dissolving is unpredictable as well.Daniel Barrett, MD, MHA, MS 
Certified, American Board of Plastic Surgery  
Member, Am. Society of Plastic Surgery