After receiving an injection, some people experience symptoms at the injection site on the skin. This reaction is a common adverse effect of vaccines, Botox injections, biologics, and chemotherapy.

Medically reviewed by Maria M. LoTempio, MD Key Takeaways Botox can cause temporary redness, swelling, tenderness, or bruising at the injection site.You may get flu-like symptoms like fever, body ...

Botox (onabotulinumtoxinA) is a brand-name injectable drug for medical and aesthetic treatments. Aftercare instructions typically aim to help minimize your risk of bruising and prevent Botox from ...

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