I had 20 mg of Botox injected near my eyes 4 days ago. The tip of my tongue has been numb since. Should I be concerned?

This should be unrelated to the Botox injection as the nerve innervating the tip of your tongue is a completely different nerve that the one treated with Botox around your eyes. If symptoms persist, though, you should follow-up with you injector.Best regards and happy holidays,Thomas Walker, MD, FACS

Thanks for the question.  The orbicularis muscle which is treated by Botox in the crows feet, is innervated by the facial nerve, which is a  different nerve than the lingual, which gives sensation to tip of the tongue.  I can’t see any way this could happen.  Give it some time to see if it resolves.  If it doesn’t , see an ear, nose and throat physician.