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 (onabotulinumtoxinA) is a prescription drug that’s used to treat a variety of medical conditions. Botox comes as a powder that’s mixed with liquid to form a solution, which is injected. Note: ...

Botox, while generally safe, carries a risk of neurological side effects, such as drooping eyelids, dizziness, and headache. More serious complications, including nerve damage, may occur in rare cases ...

Headaches are a common side effect of Botox injections, which can be used for both cosmetic purposes and to treat medical conditions, such as migraines. These headaches are typically mild and ...

A painful knee condition that affects more than one in eight active people has been treated effectively with a botulinum toxin injection and physiotherapy. A painful knee condition that affects more ...