The short answer
HIFU leaves no open wound, and most people return to ordinary activity the same day. The tissue is still responding, though. Tenderness along the treated lines can linger for a while, especially on pressure, chewing or smiling.
The timings below are general. No duration is promised for any phase, and the written aftercare you receive takes priority over this page.
HIFU downtime, phase by phase
Returning to normal
| Activity | General timing |
|---|---|
| Work and ordinary activity | Usually the same day |
| Make-up | Usually once redness has calmed |
| Exercise | Generally fine from the following day |
| Saunas and very hot showers | Better delayed until tenderness settles |
| Strong actives | Can usually resume once the skin feels normal, as advised |
Normal, and not normal
Pinkness, warmth, tenderness along treated lines, slight jaw swelling, a small bruise and a patch of tingling.
Persistent numbness, weakness or asymmetry of facial movement, a raised welt or line of blisters, a burn mark, marked or one-sided swelling, and new hollowing.
Simple care during HIFU downtime
Use broad-spectrum sunscreen every morning and reapply it outdoors. Avoid chlorinated pools until any redness has gone. Postpone prolonged wide-mouth dental work if the jawline is still tender. Sleep face-up with your head slightly raised while the jawline is sore, as side-sleeping can make swelling look lopsided. Avoid facials, massage and other energy treatments over the same zones in the first week.
Why problems can happen
Unwanted effects are linked to where the heat lands. Heat near a nerve branch can affect feeling or movement. Energy delivered too superficially can leave a welt, blisters or a burn. Heat placed into thin fat can lead to hollowing. So energy and depth are set by the doctor after palpating tissue thickness zone by zone. He adjusts energy and sequence to your feedback, not to a preset. The deeper cartridge is used only where there is enough depth above bone. The thyroid, the orbital rim and the course of the marginal mandibular nerve are avoided. These steps lower the risk but do not remove it. If you notice anything in the not-normal list, please contact the clinic.
What HIFU downtime does not tell you
A short recovery says nothing about the size of the change. Remodelling develops over weeks and months, and it varies with age, skin quality, laxity and sun exposure. HIFU cannot replace lost volume, reduce a full fat pad, remove redundant skin or treat pigment. Some faces are not suited to it. Lean or volume-depleted faces, and a sag caused by volume loss, may be advised against it. See HIFU side effects for the fuller picture on who should avoid it.
Planning around your diary
Because the visible phase is short, HIFU can usually fit around a working day. If you have an event, the question to plan around is tenderness rather than appearance. Chewing discomfort may matter more than redness. Please tell the doctor about any important dates, as timing can be discussed at consultation. Sessions are decided at review, and aftercare instructions are given in writing. Fee factors are also set out in the written plan, and no prices are advertised.