Botox Side Effects: What Is Common, What Is Rare and How to Avoid Them
Knowing what to expect and how to lower the risk
Botox is very safe when given by an experienced doctor, but like any treatment it can have side effects. Most are mild and short-lived, such as small bruises. Rarer effects, like a heavy eyelid, are usually temporary too. Here is what to know.
Key takeaways
- Common: small bruises, redness, mild headache.
- Less common: heavy brow or uneven result.
- Rare: eyelid droop, usually temporary.
- Prevention: experienced injector and good aftercare.
- Temporary: effects wear off as Botox does.
Side effects at a glance
| Side effect | How common | Usually lasts |
|---|---|---|
| Small bruises | Common | A few days |
| Mild headache | Occasional | 1–2 days |
| Heavy brow | Uncommon | A few weeks |
| Uneven result | Uncommon | Fixed at review |
| Eyelid droop | Rare | Weeks, until it wears off |
Typical prices in Seoul (2026)
Botox commonly costs about ₩50,000–₩200,000 per area, depending on the brand and units.
Approximate ranges from publicly listed 2026 prices.
Lowering the risk
- Choose an experienced doctor.
- Follow aftercare advice for the first day.
- Tell your doctor about medicines and supplements.
Questions to ask before you book
- What side effects are most likely for me?
- What should I do if one appears?
- Should I stop any supplements first?
- Is a review included?
Related reading
Quick summary
Most Botox side effects are mild and short-lived, such as bruising or a mild headache. Rarer effects like eyelid droop are usually temporary, and an experienced doctor plus good aftercare lowers the risk.
Frequently asked questions
Is eyelid droop permanent?
No, it wears off as Botox does.
Can I reduce bruising?
Avoid blood-thinning supplements beforehand if your doctor agrees.
Is headache normal?
A mild headache can happen for a day or two.
What if results look uneven?
A review at two weeks can correct it.
Are side effects more likely with cheap Botox?
Product quality and injector skill both matter.
This article is general information, not medical advice. Suitability, treatment choice, results and price should be confirmed by a doctor at consultation, and individual results vary. Price ranges are approximate and may change.
Botox is very safe when given by an experienced doctor, but like any treatment it can have side effects. Most are mild and short-lived, such as small bruises. Rarer effects, like a heavy eyelid, are usually temporary too. Here is what to know.
