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Botox
Is it safe to get a Botox after a flu shot that contains a very small trace of Neomycin?
Botox is very locally acting so there should not be any problems getting your treatment after the flu vaccine. It works right at the muscle where it's injected and doesn't circulate through the bloodstream the way the trace neomycin from the vaccine does, so the two don't interact. Neomycin sensitivity is something to flag to whoever gives your flu shot, not a concern for Botox itself, since Botox doesn't contain it. If you want to keep things simple, you can space the two appointments a day or two apart, that way if you notice any soreness, redness, or swelling, you'll know which one caused it. If you develop unusual swelling, drooping, or trouble swallowing after treatment, contact my office.
Clinical Context
Botox works locally at the injection site and doesn't interact with vaccine ingredients circulating elsewhere in the body. If you're allergic to neomycin, that's a vaccine consideration, not a Botox one, since Botox doesn't contain it. One practical tip: spacing the two appointments by a day or two can make it easier to tell whether any soreness or swelling came from the shot or the injection.
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