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What You Need to Know Before Nasal Ala Botox: How Long It Lasts and When It Starts Working

Hongdae Dermatology Skin Clinic 弘大美丽石医院 · ✦뷰티스닥터 합정역✦ · May 18, 2026

Hello. This is Beauty's Doctor Kim Ha-won. ​ Some people feel that their nostrils spread widely every time they smile, ​ or that their nose looks bigger than expected when they tak...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Hongdae Dermatology Skin Clinic 弘大美丽石医院

Original post date: May 18, 2026

Translated at: May 18, 2026 at 4:01 AM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

What You Need to Know Before Nasal Ala Botox: How Long It Lasts and When It Starts Working image 1

Hello.

This is Beauty's Doctor Kim Ha-won.

Some people feel that

their nostrils spread widely every time they smile,

or that

their nose looks bigger than expected

when they take photos.

Especially, even if it seems fine normally,

there are many cases where

the nostrils spread out sharply to both sides

at the moment of smiling, making the impression look different.

At times like this,

one of the procedures many people ask about is

nasal ala Botox.

Nasal ala Botox

does not change the nose shape itself through surgery,

but it is a procedure that can help

ease the excessive nostril movement that occurs

when smiling or talking.

So

for those who want to naturally refine the nose line,

or

who want to make their impression a little neater

without drastic changes,

it is often a popular choice.

Why the nostrils look spread out

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The nostrils can look quite different

depending on the movement of the muscles used

when making facial expressions.

Especially when smiling,

if the muscles around the nostrils are strong,

the nostrils may spread widely to the sides,

making the nose look larger than it really is.

In such cases,

it is often not because the bridge of the nose is low,

but because of the movement itself

that the nose appears wider.

So, with an approach different from nose surgery,

a method that controls muscle movement

can be helpful.

How nasal ala Botox works

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Nasal ala Botox

works by partially easing the strength of the muscles

involved in nostril movement.

By reducing excessive spreading,

it helps the nostrils look less flared when smiling.

In other words,

it is closer to the idea of

making the impression during movement look a little more refined

rather than reducing the actual size of the nose.

So the change is often not a dramatic or unnatural one,

but rather something that looks

“neatly refined.”

Who often worries about this?

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✔ When the nostrils spread widely while smiling

✔ When the nose looks wide in photos

✔ When the nostrils catch the eye before the tip of the nose

✔ When wanting a natural change

✔ When surgery feels 부담스럽지만 wanting a change in impression

✔ When always emphasizing nostril shading in makeup

✔ When being conscious of smiling expressions

In particular, people who feel 부담스러운 about noticeable facial changes

often consider this procedure

as a natural option.

When do the effects appear?

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Usually,

changes in movement start to be felt gradually

about 3 to 7 days after the procedure.

Although it varies from person to person,

the effect is usually established

around 2 weeks.

As the nostril movement while smiling

appears to spread less than before,

the overall impression can look

a little neater and more refined.

In particular, when taking photos,

many people feel that the nose line

looks less wide than before.

How long does it last?

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Usually, it lasts about 3 to 4 months.

However, depending on muscle use

and expression habits,

the duration can vary slightly.

If you normally use your facial expressions a lot,

you may feel that the effect wears off a bit faster.

On the other hand,

with repeated treatment,

some people feel that the muscle movement itself

becomes a little more relaxed.

Important points during the procedure

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Nasal ala Botox

is a procedure done with a small amount,

but the injection location and dosage control are

extremely important.

If too much is injected,

the smiling expression may look awkward,

or even movement around the mouth

may feel unnatural.

So

a delicate approach that takes into account

facial movement and expression habits is important.

In particular, since

the direction of nostril movement differs from person to person,

rather than repeatedly injecting the same spot,

it is important to carefully observe the current movement

before proceeding.

Procedures often done together

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Nasal ala Botox is often performed together

with other procedures.

✔ Nose contour injections

✔ Jaw Botox

✔ Corners-of-the-mouth Botox

✔ Philtrum Botox

✔ Contouring care procedures

✔ Skin elasticity care

When combined with these procedures,

the overall facial balance can be considered together.

In particular, when adjusted together with the lower face or the area around the mouth,

the impression can sometimes look softer

and more refined.

Post-procedure precautions

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✔ Do not press on the treated area strongly

✔ Avoid drinking alcohol and using saunas on the day of treatment

✔ Avoid excessive massage

✔ Be careful with the habit of sleeping face down

✔ Reduce excessive repeated facial expressions right after the procedure

In the early stage,

slight swelling or needle marks may appear,

but in most cases,

they recover temporarily.

Nasal ala Botox is not a procedure

that dramatically changes the shape of the nose,

but rather one that helps refine

the spreading movement when smiling

in a more natural way.

So

it is often chosen by people who want the feeling of

“something looks different, but still natural.”

However, since facial muscle movement varies from person to person,

it is important to first fully check current expression habits

and nostril movement,

and then set the appropriate dosage and injection site.

Thank you for reading.

This was Beauty's Doctor Kim Ha-won.

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