What could have caused my upper lip to swell after Botox between my eyebrows?

Thank you for sharing your question and I am sorry to hear of your lip swelling issues.  I do not think that the Botox likely contributed to your lip swelling and more likely some other irritatant resulted in the swelling.  I would look into any changes to your lipstick, lip balm, spicy foods, etc that may have been the cause.  Hope this helps.

It is highly unlikely that your Botox treatment had anything to do with the swelling of your lip.  I'm glad to hear the swelling is improving, but the cause would not be related to the injections between your brows.

There is no way that the Botox you had injected caused the swelling of your upper lip. Although the cause of the sweling will likely never be known, what is important is that the swelling is decreasing.

If there was no injury to your lip, chances are you had some kind of an allergic reaction to a product other than Botox. This may have been either new lipstick or food that you have come in contact with. Good luck from New York City

 Thank you for your question. Based on your history it is highly unlikely that the lip swelling you encountered had anything to do with the Botox you received to your glabella eight days prior. It was more likely due to an allergic reaction to something else. 

Thank you for your question.  Based on the sequence of events you described, it is highly unlikely that there is any correlation between the swelling of your lips and your glabella Botox 8 days prior.  The lip swelling can have been caused by a multitude of other things including an allergic reaction to a food, gym, lipstick, chapstick, or even toothpaste.  Glad everything is resolved. Best,Suneel Chilukuri, M.D.Houston, Texas

Hi.  Thank you for your question.  Allergic teactions to botox are fairly uncommon.  Most likely you upper lip sweeling was a result of an allergic reaction to something else you may have eaten or placed or your lips.  However, if it happens again, you may look into what your injector is using to reconstitute the botox, such as preservative in the saline.  
Best of luck