Sofwave aftercare and downtime

Most people leave a Sofwave session and resume normal activity the same day. Warmth and mild redness are usual and typically settle within hours; some patients have mild swelling or tenderness to pressure for a day or two. Makeup is generally possible the same day. There is no peeling, no dressing and no scheduled recovery period. The result is a different matter from the recovery: published studies measure change developing over weeks to months as new collagen forms, which is why the meaningful assessment point is two to three months out and not the week after. No adverse events were reported in the published series cited below, but those series are small.

The timeline

What is normal, and for how long

The immediate sensation is heat, which fades quickly once the passes stop. Mild erythema in the treated areas is expected and usually resolves within a few hours, occasionally lasting into the following day. Some patients notice mild oedema, most often submentally, and a tenderness that is felt on pressure rather than at rest. Pressing on the jawline or applying skincare firmly may be briefly uncomfortable for one to three days. None of this requires treatment.

It is worth naming the thing that surprises people most: any tightening felt on the day is not the result. That is tissue response to heat, and it settles. The measurable change is the collagen that has not been made yet.

What to do

• Sun protection. Daily broad-spectrum SPF on treated areas. Heat-treated skin is not more photosensitive in a dramatic way, but pigmentation risk is best managed by not testing it.
• Keep skincare gentle for a few days. Cleanser, moisturiser, sunscreen. Reintroduce retinoids, acids and physical exfoliation once any tenderness has gone.
• Hydrate and sleep normally. The mechanism is a wound-healing response, and healing is a physiological process, not a cosmetic one.
• Photograph yourself at baseline. A gradual change over three months is genuinely hard to perceive from memory. A neutral-light photo before the session is the only honest way most patients can later judge whether it worked.

What to avoid, and for how long

• Intense heat for about 48 hours. Sauna, jjimjilbang, hot yoga and very hot showers on the treated area. This is a comfort measure, not a hard safety limit.
• Aggressive actives while tender. Retinoids, AHAs and BHAs, and scrubs.
• Stacking other energy treatments in the same area. Timing of any additional laser, radiofrequency or ultrasound treatment is planned with the clinician, not improvised.
• Judging the outcome at two weeks. Not a safety point, but the most common reason patients conclude a treatment failed before it has finished.

When to contact the clinic

The published series report no adverse events, and problems after mid-dermal ultrasound are uncommon. Still, contact the clinic if you notice redness that worsens rather than settles after 48 hours, blistering or crusting, swelling that increases after the first two days, a new area of numbness or asymmetry of facial movement, or a fever. These are not expected findings and should be looked at rather than waited out.

How the result develops

Histology work on this device describes thermal injury confined to the dermis followed by a gradual increase in collagen and elastic fibre density, measurable at two months in one Korean study and continuing across a ten-month follow-up in another. Imaging-based studies measured tissue contraction of about 1.9 mm at eight weeks, essentially unchanged at 24 weeks, and fold-depression volume reductions that were significant at one and three months with no significant further change between those visits. Read together, these describe a change that largely establishes itself within the first few months and then holds through the reported follow-up windows.

What none of them establish is a fixed duration. Published follow-up runs to six, eight and ten months in the studies cited here. Beyond that the evidence thins, and anyone quoting a specific number of years is going past what has been measured.

When to consider repeating

Re-treatment is a decision made at reassessment, typically no earlier than three months and often at six to twelve, based on what the skin actually did. Ageing continues regardless of treatment, so a maintenance interval that suits one patient will over-treat another. This is a decision for an examination rather than a calendar.

Recovery after microfocused ultrasound differs and is described on the Ultherapy aftercare page.