Botox Side Effects: What’s Normal and What’s Not

Botox is one of the most popular and trusted cosmetic treatments in the world - but like any medical procedure, it comes with potential side effects.

We believe in transparency and patient empowerment. 

That’s why we’re walking you through common Botox side effects, what’s totally normal, what’s not, and when to call your Botox injector.

Let’s help you feel confident, prepared, and safe during treatment.

What is Botox and How Does It Work?

Botox is a neuromodulator derived from botulinum toxin. It temporarily relaxes targeted muscles, reducing the appearance of fine lines and wrinkles, especially around the forehead, eyes, and mouth.

Results typically appear within 3–7 days and can last 3–4 months.

Common and Normal Botox Side Effects

Redness and Swelling at the Injection Site

This is very common and usually resolves within 15–30 minutes. Sometimes, minor swelling may last a few hours.

Bruising

Bruising can happen if a small blood vessel is nicked during the injection. It’s not serious and should fade in a few days. Applying a cold compress can help.

Mild Pain or Discomfort

Some clients feel a slight stinging during the injection or soreness afterwards. This is completely normal and usually fades within a day.

Headache

Some clients report a mild headache post-treatment. It’s temporary and can typically be managed with over-the-counter pain relief.

Temporary Muscle Drooping

Occasionally, Botox may affect nearby muscles, causing a slight droop in the eyelid or eyebrow. This is rare and temporary and can be managed with follow-up care.

Flu-like Symptoms

Mild fatigue, chills, or muscle aches can occur within the first few days. These symptoms are uncommon and short-lived.

Less Common but Still Normal Side Effects

Dry Eyes or Excessive Tearing

If Botox is used near the eyes, temporary changes in tear production can occur. This usually corrects itself as the product settles.

Numbness or Tingling

Some people experience a tingling sensation or slight numbness, but this typically fades as the product integrates into the tissue.

Mild Allergic Reactions

You may experience some itching, rash, or light swelling. Discuss this with your injector to ensure it does not progress.

Serious Botox Side Effects — When to Call Your Injector or Doctor

Though rare, these symptoms may indicate a complication. Contact your injector or seek medical help right away if you notice:

• Severe allergic reactions: Symptoms may include swelling of the face or throat, difficulty breathing, or hives.
• Vision problems: Double vision, blurry vision, or difficulty focusing may suggest diffusion near the eye muscles.
• Severe muscle weakness: If you experience difficulty swallowing, speaking, or breathing, seek emergency care immediately.
• Signs of infection: Redness, warmth, pain, or pus at the injection site may indicate infection and require medical evaluation.
• Persistent or worsening muscle drooping: If drooping doesn’t improve within a week or worsens, follow up with your injector.
• Severe pain: Intense or spreading pain is not typical and should be looked at immediately.

How to Minimize Botox Side Effects

• Avoid rubbing or touching the treated area for 24 hours
• Stay upright for at least 4 hours post-treatment
• Avoid intense exercise or hot environments (like saunas) for 24–48 hours
• Follow your injector’s aftercare instructions exactly

What to Expect During Your Botox Follow-Up

Follow-up appointments allow us to assess results and make small adjustments if needed. We encourage all clients to book a touch-up visit 2–3 weeks after treatment.

Frequently Asked Questions (FAQs)

How long do Botox side effects last?

Most mild side effects last less than 48 hours.

Is bruising guaranteed?

No, but it’s common and harmless when it happens.

Should I cancel my Botox if I have a headache or am tired?

Not necessarily, just let your injector know beforehand.

Can Botox go wrong if I move too much?

Not usually, but avoid lying down or exercising right after to reduce the risk of diffusion.

Ready for Smoother, More Confident Skin?

Whether you're new to Botox or a returning client, our team at Afterglow Injection Studio is here to support you.

We offer expert guidance, honest answers, and results you’ll love - always with your safety and comfort in mind. Have questions about side effects? 

Want to schedule your next treatment?

Book a consultation today and experience the Afterglow difference.