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Q: I had Botox for the first time a week ago, and I feel like I have the flu. Is this normal, and how long will it last?
A: Flu-like symptoms are known adverse effects of Botox. Please see this medical information sheet.
This may last 3-5 days. Occasionally these adverse effects may persist longer in some individuals. But it's not likely to be concerning if there is no redness, tenderness, swelling, or pain at the injection site.
-- Answer from Dr. Arun Phophalia, a physician on JustAnswer.
Daily Answer is excerpted from the JustAnswer archives and features information provided by a Expert on JustAnswer.