It usually happens around nine in the evening. The appointment went smoothly, the swelling settled enough to leave the clinic, and then — somewhere between dinner and bed — a small firm lump appears under the skin, or one side looks fuller than the other in the bathroom mirror. The message that lands with us most often isn’t about pain. It’s a quiet “is this normal?”
Most of the time, it is. But good dermal filler aftercare in Brighton is less about luck and more about knowing what your skin is actually doing in those first hours and days, and how the choices you make around the appointment shape the settled result. The injecting is over in minutes. The two weeks that follow are where a natural outcome is either protected or quietly undermined.
This is written from how we approach the recovery window at our St James’s Street clinic — practical, specific, and honest about the parts people rarely hear before they book.
What’s actually going on under the skin
Hyaluronic acid filler is a soft gel that draws water to itself. That single property explains most of what you’ll notice early on. In the first 24 to 48 hours, the product is settling into the tissue, the gel is binding water, and any tiny trauma from the needle or cannula is triggering a normal inflammatory response. Swelling, mild bruising, tenderness and the odd firm patch are all part of that process, not a sign something has gone wrong.
What surprises people is the timeline. Filler doesn’t look “finished” the day you have it. It typically takes around two weeks for the gel to integrate, the swelling to resolve and the result to soften into its true shape. Judging your lips, cheeks or jawline on day two is like judging a room mid-decoration. This matters in the lip area especially, where initial swelling can make volume look far greater than the final outcome — a point we cover in more depth in our guide to what a first lip filler appointment really involves.
The first 48 hours: what to do
The early window is when sensible habits make the most difference. None of this is dramatic — it’s mostly about not interfering while the product settles.
- Stay upright and gentle for the rest of the day. Avoid pressing, rubbing or “checking” the area with your fingers. Sleeping slightly elevated on the first night can help reduce morning puffiness.
- Use a cool compress, not ice directly on skin. Short, gentle cooling helps swelling; harsh pressure or direct ice does not.
- Keep the area clean. If you’ve had lip filler, skip lipstick and lip products for the rest of the day to reduce infection risk.
- Drink water and eat normally. Hyaluronic acid works with your tissue’s hydration; staying well hydrated is quietly useful.
- Take paracetamol if you’re sore, rather than anti-inflammatories like ibuprofen, which can increase bruising. If you’re unsure what’s right for you, ask your practitioner.
A small amount of arnica or a bruise cream is fine if you like, though the evidence is modest. What helps far more is simply leaving the area alone.
What to avoid — and why it matters
Most aftercare “rules” exist for a reason, and the reason is usually either bruising, swelling or infection.
Strenuous exercise, hot yoga, saunas and very hot showers are best avoided for 24 to 48 hours, because raising your core temperature and blood pressure can worsen swelling and bruising. Alcohol does the same and is sensibly skipped on the day. Flying soon after treatment isn’t dangerous, but cabin pressure and dehydration can make swelling more noticeable, so if you’ve a wedding or work trip abroad, timing the appointment a couple of weeks ahead is wise.
There’s also a fair amount of Brighton-specific reality to factor in. A bracing walk along the seafront is fine; a long midday session on the beach in July is less so, because significant heat and direct sun exposure in the first days can aggravate swelling. Facials, microneedling, chemical peels or any other treatment over the same area should wait — generally a couple of weeks — and dental work is best scheduled either before filler or a fortnight after, as the stretching and pressure can disturb a fresh result.
The two-week timeline, day by day
Recovery rarely follows a textbook, but this is the shape most people experience.
Day 0–2: Swelling peaks, particularly with lip and tear trough work. Bruising, if it appears, often shows now. The area may feel firm and look slightly over-full. This is expected.
Day 3–5: Swelling begins to subside, bruising starts to fade or can be covered with makeup once any pinpoint marks have closed. Small lumps may still be felt but are usually settling.
Day 6–10: The result starts to look like itself. Most of the early puffiness has gone, and the gel is integrating into the tissue.
Day 11–14: The settled outcome. This is the point at which it’s reasonable to assess the result — and the right time for a review appointment if you feel an area needs a small adjustment.
Gentle self-massage is sometimes advised for specific areas if a firm patch lingers, but only when and how your practitioner has shown you. Filler placed in different areas behaves differently, so blanket instructions from the internet aren’t a substitute for what you’re told in clinic. If you want the bigger picture on how outcomes vary by area and product, our overview of what defines good dermal filler work in Brighton is a useful companion read.
How long results last — and planning ahead
How long filler lasts depends heavily on where it’s placed and how your body metabolises it. As a rough guide, lip filler often lasts around 6 to 9 months, while filler in areas with less movement, such as the cheeks or jawline, can last 12 to 18 months. Individual outcomes vary with your metabolism, lifestyle and the product used.
Good aftercare doesn’t extend longevity in any magical way, but looking after your skin generally — sun protection, hydration, not smoking — supports the surrounding tissue. Many clients in our 30s-to-50s Brighton and Hove demographic prefer a maintenance rhythm of small, regular top-ups over occasional large volumes, which tends to look more natural and keeps the result consistent.
When to contact your practitioner
This is the part of aftercare that genuinely matters most. Dermal fillers are a medical procedure, and while serious complications are uncommon, knowing the warning signs means they’re caught early.
Mild swelling, bruising and tenderness are normal. What is not routine, and warrants prompt contact with your clinic, includes: skin that turns white, dusky, grey or mottled; severe or escalating pain that’s out of proportion to a normal injection; a blanched, blocked-feeling area; or signs of infection such as spreading redness, heat, pus or fever in the days afterwards. A rare but recognised risk is vascular occlusion, where filler affects a blood vessel — it is time-sensitive, which is exactly why a reputable clinic gives you a way to make contact and keeps hyaluronidase, the enzyme that dissolves hyaluronic acid filler, on hand.
This is also why who treats you counts as much as what they inject. Choosing a practitioner on a recognised register such as the Joint Council for Cosmetic Practitioners means someone is trained to manage complications, not just to administer the product. Every treatment with us begins with a consultation, and dermal fillers are for adults only.
Frequently asked questions
How long should I wait before judging my filler results?
Around two weeks. Early swelling, especially in the lips, can make the result look fuller or more uneven than it will settle to. A review at the two-week mark is the right time to assess and discuss any small adjustment.
Can I exercise after dermal fillers?
Light movement and walking are fine, but it’s sensible to avoid strenuous exercise, hot yoga, saunas and very hot showers for 24 to 48 hours, as raised temperature and blood pressure can worsen swelling and bruising.
Is it normal to feel lumps after filler?
Small firm areas in the first days are common as the gel settles and swelling resolves. They usually soften within a couple of weeks. Mention any lump that persists or feels uncomfortable at your review so your practitioner can assess it.
When can I wear makeup after lip or cheek filler?
For lip filler, it’s best to avoid lip products for the rest of the treatment day to reduce infection risk. For other areas, light makeup is usually fine once any pinpoint injection marks have closed, often the next day.
What should I avoid in the first week?
Strenuous exercise, saunas, heavy sun and heat exposure, alcohol on the day, and other facial treatments such as facials, peels or microneedling over the same area. Anti-inflammatory painkillers like ibuprofen can increase bruising, so paracetamol is generally preferred.
How soon can I have a top-up or correction?
Most reviews and minor corrections happen at around two weeks, once the result has settled. If you’re considering an adjustment, raise it at that review rather than acting on how things look in the first few days.
Filler aftercare isn’t complicated, but the first two weeks reward patience: leave the area alone, respect the heat-and-exercise window, and know the difference between normal settling and a sign worth a phone call. If you’d like to talk through what’s realistic for your features before booking, you’re welcome to arrange a consultation with our practitioner via Booksy.