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Can Botox Cause Headaches? Exploring the Potential Side Effects

Updated: April 10, 2023
By: Lauren Siso, LE, ALP

Lauren Siso, LE, ALP

Lauren Siso, LE, ALP

Lauren is the proud owner of ELLEMES Medical Spa with over a decade of experience in the Atlanta, GA area. She is recognized for her outstanding work with accolades such as Best Esthetician in Atlanta by Jezebel Magazine and Best Aesthetic Influencer by Dermascope Magazine.

botox treatment


At ELLEMES Medical Spa in Atlanta, GA, we get a lot of questions about Botox and its potential side effects. One of the most common questions we receive is, “Can Botox cause headaches?” Before we answer that question directly, let’s dive a bit deeper into the research to understand how Botox works and what the potential side effects are.

What is Botox?

botox treatment

Botox is a brand name for a neurotoxin (botulinum toxin) which is produced by the bacterium Clostridium botulinum. As one of the most popular, non-invasive cosmetic procedures, Botox has been used extensively since 2002 to reduce wrinkles and to treat medical conditions such as muscle spasms and excessive sweating.

How Does Botox Work?

Botox works by blocking the transmission of nerve signals to the affected muscles. This prevents the muscles from contracting and reduces the appearance of wrinkles and fine lines.

woman receiving botox treatment

What Are the Side Effects of Botox?

The most common side effects of Botox are temporary and often mild, such as soreness, swelling, and bruising at the injection site. Other more serious side effects that have been reported include infection, inflammation, and muscle weakness.

Can Botox Cause Headaches?

Headache is a possible side effect of Botox, although it is considered to be rare. It is estimated that headaches may occur in only 1% of Botox users. In most cases, the headaches are mild and go away after a few days without any treatment.

The exact cause of Botox headaches is not known. However, some researchers believe that the headache may be caused by a reaction to the neurotoxin or by the injection itself. Another potential cause of headache is the spread of the neurotoxin to areas where it was not intended, causing muscle weakness and tension headaches.


Can Botox cause headaches? While it is rare, headache is a possible side effect of Botox. The exact cause of Botox headaches is not known, but they are often mild and go away without treatment. If you experience a headache after receiving Botox, it is important to contact your doctor or injector immediately. At ELLEMES Medical Spa in Atlanta, GA, we strive to provide the safest and most effective treatments for our clients. If you have any questions about Botox or potential side effects, please do not hesitate to contact us.

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Staff Spotlight

Lauren Siso, Esthetician

Lauren has been medical aesthetician and laser practitioner for over 10 years and is passionate about helping her clients achieve their best skin possible. Lauren truly believes that everyone deserves to feel confident in their own skin and is dedicated to helping her clients achieve that goal!

lauren siso performing dermaplaning treatment
Lauren Siso, Medical Aesthetician at ELLEMES Medical Spa