How Ultherapy works, and why side effects happen
Ultherapy uses micro-focused ultrasound to deliver heat to precise depths under the skin, including the deeper support layer that surgeons call the SMAS. The ultrasound passes through the surface and creates small points of heat underneath. Over the following weeks and months the body responds by producing new collagen, which is why lifting and tightening effects develop gradually.
Because the energy is delivered deep, the skin surface usually looks fairly normal right after treatment. Most of what patients feel afterwards comes from the tissue underneath reacting to that heat. Ultherapy Prime is the newer version of the platform, with updated imaging that lets the practitioner see the tissue layers on screen while treating.
Common reactions after Ultherapy
Most side effects are mild and temporary. They vary with the areas treated, the number of lines, your skin and your sensitivity. Commonly reported reactions include:
- Discomfort during treatment.
Many people feel brief, deep pulses of heat or a prickling ache, especially over bony areas such as the jawline and forehead. Comfort varies widely between patients.
- Redness.
Mild flushing is common right after treatment and often fades within a few hours.
- Swelling.
Slight puffiness can appear over the next day or two, sometimes more noticeable in the morning.
- Tenderness.
Treated areas can feel sore to touch, like a bruise or after a workout, for several days and occasionally a few weeks.
- Tingling or numbness.
Some people notice altered sensation in small areas, which usually settles on its own.
- Small bruises or welts.
Occasionally, faint bruises or raised lines appear along the treatment path. These typically fade over days.
Many patients go back to their usual activities the same day. Visitors often go sightseeing afterwards, though you may prefer to keep the first evening relaxed.
Less common effects to know about
Like any energy-based treatment, Ultherapy carries some less common risks. These include temporary nerve irritation that can cause weakness in a facial muscle, longer-lasting numbness, or very rarely surface burns or marks. Such effects are uncommon, and when they occur they usually improve over time, but they are a reason to choose a clinic where a doctor plans the treatment and adjusts depth and energy to your anatomy.
You should also mention in consultation if you have open wounds, active skin infection, metal implants or devices in the treatment area, a history of keloids, or if you are pregnant. The doctor will decide whether Ultherapy is appropriate.
When to contact a doctor
Expected soreness and swelling should gradually ease. Contact the clinic or a doctor if you notice:
- Worsening pain.
Pain that becomes stronger after the first few days instead of improving.
- Blisters or broken skin.
Any blistering, crusting or open areas on the treated skin.
- Muscle weakness.
Difficulty moving part of your mouth or smile, or an uneven expression.
- Persistent numbness.
Numbness or tingling that does not seem to be settling after a couple of weeks.
- Signs of infection.
Heat, spreading redness, pus or fever.
If you have already flown home, a local doctor can examine you, and you can also message the clinic with photos so the treating team knows what is happening.
Reducing the chance of side effects
You cannot remove all risk, but some steps help:
- Choose a physician-led clinic.
A doctor should assess your face, mark the areas and select depths, especially around nerves and thin skin.
- Share your history.
Mention previous fillers, threads, surgery, medication such as blood thinners and any reaction to earlier treatments.
- Be realistic about shots.
More shots are not automatically better. The plan should suit your tissue and goals.
- Allow time before events.
Leave a buffer of several days before photos or flights in case of swelling or tenderness.
- Follow aftercare.
Gentle skincare, sun protection and avoiding heavy facial massage for a short period are commonly advised.
Ultherapy Prime at Daybeau Clinic Seomyeon
At Daybeau Clinic Seomyeon, Ultherapy Prime 300 shots is listed at 990,000 KRW for the first visit. Prices are VAT excluded (10% VAT is added at payment) and were checked in October 2026. The doctor confirms during consultation whether this suits your goals or whether another lifting option might fit better. You can read more on the Ultherapy Prime page
or compare options in the face lifting overview
and the price list.
Frequently asked questions
How long does soreness last after Ultherapy?
For many people, tenderness eases within a few days, though some notice mild sensitivity on chewing or touch for a few weeks. If it worsens rather than improves, contact the clinic.
Will I look swollen in photos the next day?
Swelling is usually mild and many people do not look noticeably different. Because individual reactions vary, it is sensible to leave a few days before an important event.
Can Ultherapy damage my fillers?
Mention any fillers or threads during consultation. The doctor will consider where they are and plan the treatment accordingly.
Is there anyone who should not have Ultherapy?
Pregnancy, active skin infections, open wounds and certain implants in the area may rule it out. A doctor makes this decision at consultation.
Considering Ultherapy Prime in Busan? Book a consultation
or message us on WhatsApp, and a doctor can review whether it suits your face and your travel plans.
