Botulinum neurotoxin (BoNT) injections have emerged as a cornerstone treatment for a range of neuromuscular conditions, from dystonia and spasticity to aesthetic muscle contouring. Advances in imaging ...

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.

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, ...