Clinical trials have shown that Botox is safe, with minimal risks and side effects.Â
Aside from mild bruising at the injection site, the most common side effects include mild bruising at the injection site or droopy brows, if the forehead is treated.
There's also a risk that it can unintentionally spread into other areas, causing drooping eyelids, a lopsided smile, or crooked eyebrows. The best way to prevent this is to avoid touching the treated area for 4 hours after your treatment. Â
The neurotoxin can also leave you with a frozen look, if youâre over-injected. Results are never permanent and will gradually disappear over three to four months, but that's yet another reason to find an experienced, artful injector.
Related: 7 Signs of Bad Botox and How to Avoid or Fix Botched Injections
Some patients also experience these temporary side effects.Â
- dry mouth
- tirednessÂ
- discomfort at the injection siteÂ
- headacheÂ
- neck painÂ
- vision problems, including blurred vision and dry eyes
This treatment is derived from a toxinâbotulinum toxin type A, produced by a type of bacteria called bacterium Clostridium botulinumâthat temporarily interrupts the nerve signaling between muscles to induce short-term muscle weakness. However, it can't actually give you botulism (a type of food poisoning).
Rare but serious side effects of botulinum toxin injections include:
- Trouble swallowing, breathing, or speaking may occur after very high doses, when injected into the neck muscles.Â
- Allergic reactions can also happen. Seek emergency healthcare if you develop hives and itching, wheezing, feeling faint, or swelling in your face, tongue, or throat.
If you have any concerns about these risks, talk to your injector prior to your treatment. Â
To help reduce your chances of a complication, find a qualified injector with a solid track record of experience and happy patients. The rules about who can perform injections vary from state to state in the U.S. In some places, only a doctor is allowed to administer any botulinum toxin product, but most states permit other medical professionals, such as a nurse or physician assistant, to work under a doctorâs supervision.Â
RealSelf Tip: While some news stories have cautioned against getting Botox after having a COVID booster shot, dermatologists say that thereâs no data showing that itâs necessary to separate toxin injections from vaccines. Find out more.