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 ...

Botox can cause temporary redness, swelling, tenderness, or bruising at the injection site. You may get flu-like symptoms like fever, body aches, or nausea after Botox. Botox may cause headaches, ...