It has been 5 full days since my lips were injected. The last 3 the right side of my top lip is extremely swollen. Why? (photos)

There can be some asymmetrical swelling and/or lumps after lip injections which can last 1 to 2 weeks. You can apply firm pressure between two fingers on the lips for a few days, for 5 minutes at a time, in order to help decrease swelling and even out any lumps. If you're unhappy with your final results, you can have the filler dissolved with hyaluronidase and try a different technique next time. I suggest following up with your injector about your concerns -- or getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

This looks like either an infection or incorrect filler placement. I would contact your provider immediately and seek medical help. This will likely not go away on its own. Please contact a qualified provider or a board-certified physician with extensive experience in these procedures.
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Thank you for your question. It can take upwards of two weeks for swelling following injections to completely subside. Small lumps or bruising is not uncommon. Give it a little more time to see your final result. Follow up with your injector to address your concern. Good luck!