Botox (onabotulinumtoxinA) is a prescription injection used to treat certain medical conditions by relaxing specific muscles and glands. It comes as a powder that a healthcare professional will mix ...

For patients with isolated or essential head tremor, injection of botulinum toxin into each splenius capitis muscle on day 0 and during week 12 is more effective than placebo for reducing tremor ...

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, ...