Thermage FLX Recovery Time, Aftercare and Possible Side Effects

Downtime after Thermage FLX is minimal (temporary redness or swelling). Common side effects include temporary redness and swelling and heat or discomfort. Key aftercare: avoid sauna and alcohol on the day.
Medically reviewed by Dr. Lee Da-in, Medical Director, Daybeau Clinic Seomyeon · Last reviewed October 2026

Recovery time

Minimal (temporary redness or swelling). Results: immediate tightening, with gradual improvement over 2–6 months.

Aftercare

  • Avoid sauna and alcohol on the day
  • Moisturise and use sunscreen
  • Wait 1–2 weeks before other irritating treatments

Possible side effects

  • Temporary redness and swelling
  • Heat or discomfort
  • Rarely burns, blisters or dents

If you notice pain beyond what was expected, skin colour change, heat, discharge or blisters, contact the clinic right away on +82 51-925-7890.

Discuss with the doctor first if

  • Pregnancy
  • Pacemakers or other implanted electronic devices
  • Metal implants in the area (tell the doctor)
  • Inflammation in the area

See also the clinic's official post-treatment precautions.

Medical notice: every procedure can cause side effects such as swelling, bruising, redness, pain, inflammation or pigmentation, and results and their duration vary between individuals. Suitability and method are decided only after a consultation with the doctor. This page is general information, not a diagnosis. Fees follow the clinic's official non-covered fee schedule.

Frequently Asked Questions

Can I go back to normal life right after Thermage FLX?

Downtime is minimal (temporary redness or swelling). Tell us your work and travel schedule so it can be planned around.

When can I use a sauna or drink alcohol after Thermage FLX?

Heat and increased blood flow can worsen swelling and redness, so avoiding them for a few days is generally advised.

What should I do if I have a side effect after Thermage FLX?

Take photos of the area and contact the clinic straight away for a check-up.

Dr. Lee Da-in

Not sure this is the right treatment?

Send Dr. Lee's team a photo and your travel dates. We'll suggest a plan and a consultation time.