What's the recovery like for Fat Dissolving Injections?

Everything you need to know about Fat Dissolving Injections recovery — timeline, tips, what to avoid, and when to call your provider.

Typical downtime: Significant swelling for several days to a week after each session

Recovery timeline

First 24–48 hours

Noticeable swelling, tenderness, and sometimes bruising in the treated area — the under-chin can look puffy or "bullfrog" swollen. This is the treatment working.

Days 3–7

Swelling and firmness peak then start to settle. The area may feel numb, hard, or lumpy to the touch — normal as the fat breaks down.

Weeks 2–4

Swelling resolves and the area softens. You may feel small firm areas that continue to smooth out.

Weeks 6–8

The dissolved fat clears and the contour improvement shows. Most areas need 2 to 4 sessions for the full result.

Things nobody tells you

The swelling is the whole point and it is more than "a little puffy" — the under-chin can look bigger before it looks smaller.
The area stays numb and firm for weeks, which feels alarming but is normal.
You will likely need several sessions, so the real cost is the full course, not one visit.
Results are gradual over months as the fat clears — nothing happens overnight.

Recovery tips

Expect real swelling — plan treatments away from big events
Cold compresses in the first day or two help with swelling
Numbness and firmness under the chin are normal for weeks
Budget for the full course (2 to 4 sessions), not one visit
Keep a stable weight so remaining fat cells do not enlarge

What to avoid

Strenuous exercise for 24 to 48 hours
Massaging or pressing the area unless your provider tells you to
Alcohol for 24 hours (worsens swelling and bruising)
Blood thinners and fish oil around treatment if your provider approves
Judging the result before swelling fully settles

When to call your provider

An uneven smile or facial weakness (possible nerve irritation)
Difficulty swallowing
Spreading redness, warmth, or pus (possible infection)
Skin color changes or hard tender lumps that worsen instead of settling

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Frequently asked questions

How swollen will I be?

The under-chin can swell significantly for the first few days — some describe a "bullfrog" look. It settles over one to two weeks, so time treatments away from events.

How many sessions will I need?

Most areas need 2 to 4 sessions spaced about a month apart. The fat clears gradually over 6 to 8 weeks after each, so results build over months.

Is the numbness normal?

Yes — numbness and firmness under the chin are common for weeks as the area heals. It resolves on its own. Report facial weakness or an uneven smile, which are different.

This recovery guide is general education, not medical advice, and does not replace your provider's instructions. Healing varies by person and procedure — always follow the aftercare guidance from your own licensed provider and contact them with any concerns.