how long after dysport can you lay down

Key Facts

The rule

This is one of the most-asked questions after a treatment, and it deserves a straight answer rather than a repeat of the aftercare sheet.

Stay upright — not lying flat, not face-down — for about four hours after your injections. Some clinics say six. Some say two.

The variation between clinics is itself a clue about how firm the evidence is.

What the evidence actually says

There is no trial showing that lying down after botulinum toxin causes a problem. There is also no trial showing that it is safe.

The most substantial recent work on this looked at just over 5,000 patients across six centres in Italy, published in 2025. Those clinics used only a ten-minute precaution period rather than four hours. They reported no cases of eyelid drooping among the roughly 4,000 patients who came back for follow-up.

That sounds like a clear answer, but it is not, and the authors say so themselves: there was no comparison group and no statistical analysis. A study without a control group cannot tell you the ten-minute approach is as safe as the four-hour one — only that a bad outcome was not common among the people it saw. About a fifth of the group never came back to be checked.

The same paper described the standard aftercare rules as "based on anecdotal evidence rather than robust clinical research."

Why the rule exists at all

The thinking is that pressure on the area, or movement of the fluid before it settles, could let the toxin spread slightly beyond where it was placed. Near the brow, a small spread is the mechanism behind a droopy eyelid.

Against that: botulinum toxin binds to the nerve ending within minutes of injection. If that is right, a four-hour restriction is far longer than the window in which anything could plausibly move.

Both arguments are reasonable. Neither has been tested properly.

What to actually do

Follow your injector's instructions. They know what they injected and where.

Beyond that, a sensible position:

• Staying upright for four hours is cheap. There is no cost to it beyond inconvenience, and it removes a variable.
• If you lay down at hour two by accident, do not panic. There is no evidence you have ruined anything.
• Ask before you ice. The 2025 paper raises a possibility — not a finding — that cooling may work against the toxin taking hold. Cold is still commonly and sensibly advised for bruising and swelling, so raise it with your injector rather than dropping it on your own.
• Leave the area alone. Do not rub or massage it. The evidence here is the same quality — convention rather than trial — but again, the cost of following it is zero.

What about exercise

Same story. Strenuous exercise on the day of treatment is usually discouraged, on the same reasoning and with the same absence of evidence.

Most injectors suggest waiting until the next day. That is easy to follow and nothing is lost by doing it.

Get emergency help now if

• You have trouble swallowing, speaking, or breathing
• You feel weakness spreading to muscles you did not have treated

Go to an emergency department or call 911. Do not wait for a call back. These are rare, but they are the symptoms named in the FDA boxed warning that every botulinum toxin product carries, deaths have been reported, and they can begin hours or even weeks after treatment.

Call your injector if

• One eyelid or eyebrow starts to droop, or your vision changes
• One side sits noticeably higher than the other at two weeks

If a vision change is sudden or severe, seek urgent care rather than waiting.

None of these are related to whether you lay down.