Is it normal for one side of my lips to be bigger than the other side with hyaluronic acid?

Hello, Thank you for your question. Your lips may swell for a full week, it would be best to evaluate in a few days. If you are still experiencing numbness then you may want to reach out to your doctor again and let them know. Good luck! 

It's too soon to tell what your final results will be. You have swelling, which can be asymmetrical, and last 1-2 weeks after lip injections. If you're unhappy with your final results, you can have it reversed with hyaluronidase and try a different technique next time. See an expert. Best, Dr. Emer

After lip injections, the lips will swell for three days and then begin to decrease.  The lips are very vascular, and can bruise and swell unevenly.  We usually allow them to settle for two weeks, and then offer corrections as needed in the office.  The best way to reduce swelling is to ice the area 3-4 times per day for 15 minutes.  Oral Bromelain and Arnica can also help reduce swelling and inflammation.

You should wait a full two weeks post-injection before evaluating asymmetry in your lips. Swelling may present asymmetrically. If you are still unhappy with the shape after two weeks, you certainly can have more product injected to correct the asymmetry. Alternatively, you can also have the filler dissolved. If these concerns persist after two weeks, I would definitely schedule an appointment with your provider to discuss your options. Good luck!

You do not show any photos but the most likely cause of your asymmetry and numbness  is due to swelling.  Swelling is not unusual after injection of the lips.  This should continue to improve. I will have my patients come back at 2 weeks to re-evaluate and "touch up" as needed.  You should contact your provider if you have any concerns.