Lip Filler Aftercare – Top Tips After Lip Injections

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Lip filler aftercare matters more than most patients realise. The 48 hours after treatment determine how much swelling you carry into the following week, how cleanly the filler settles into its intended position, and whether you develop any of the common avoidable complications — lumps, migration, or persistent bruising. The treatment itself takes 15 to 20 minutes; the aftercare runs for two weeks.

This is the comprehensive aftercare guide: what to do, what to avoid, why each restriction exists, when to call the clinic, and what’s normal versus what isn’t. For the injectables aftercare framework that applies across all work, see our .

What’s normal in the first 48 hours

The most common immediate effects after are predictable and self-limiting:

Swelling. Lips swell significantly in the first 24 to 48 hours — often noticeably more than the filler volume actually placed. The lips have a rich vascular supply and respond strongly to any injection or trauma. Peak swelling is typically 12 to 24 hours after treatment, then subsides. Most of the swelling has settled by day 3 to 4, with the remaining 10 to 20% taking up to two weeks to fully resolve. For a deeper look at the swelling timeline specifically, see our guide on .

Tenderness. The lips feel sore to touch, particularly when smiling, eating, or drinking. This eases over 2 to 3 days.

Mild . Small bruises at points are common — the lips are highly vascular, so even excellent technique can occasionally nick a small vessel. Visible typically last 3 to 7 days. For more detail on managing this specifically, see our guide on .

Small lumps or unevenness. Very common in the first week as the product is still settling. The filler hasn’t yet integrated with the tissue, so palpable irregularities are expected. They typically smooth out as the product distributes and swelling resolves.

Asymmetry. Some asymmetry is normal in the first 2 weeks, often due to uneven swelling rather than uneven filler placement. The right time to assess is at the 2-week follow-up, not earlier.

None of these are reasons for concern in their normal form.

The first 24 hours: what to do

Ice the lips . Apply a cold compress (ice wrapped in a clean cloth) for 10 minutes at a time, repeated 2 to 3 times in the first day. Never apply ice directly to the lips — wrap it. Icing reduces swelling, eases tenderness, and constricts blood vessels to limit bruising.

Keep your head elevated. Use 2 to 3 pillows to keep your head higher than your heart while sleeping for the first 1 to 2 nights. This reduces overnight fluid accumulation and the morning swelling that comes with it.

Sleep on your back. Side sleeping can press one side of the lips into the pillow, distributing filler unevenly while it’s still soft. Sleep on your back for the first 48 hours to protect the placement.

Stay hydrated. Hyaluronic acid filler binds water — hydration helps the filler perform at its best and supports tissue healing.

Take paracetamol if needed. over-the-counter painkillers are fine for any discomfort. Avoid ibuprofen and aspirin for the first 48 hours — both increase bleeding risk and can prolong bruising.

Eat soft foods. Smoothies, yogurt, soft pasta, scrambled eggs. Avoid anything requiring vigorous chewing while the lips are sensitive. Wait until any local anaesthetic has fully worn off (2 to 5 hours after treatment) before eating, so you don’t accidentally bite your lip.

Brush gently. Use a soft toothbrush and very light for the first day. normal oral hygiene — clean lips heal best.

The first 48 hours: what to avoid

No alcohol. Alcohol dilates blood vessels, increases bruising, and impairs . Avoid for at least 24 hours, preferably 48.

No exercise. Anything that raises your heart rate significantly — running, weights, hot yoga — pushes blood pressure up and worsens both swelling and bruising. Wait at least 24 to 48 hours.

No heat exposure. Saunas, steam rooms, hot tubs, sunbeds, and sunbathing all increase blood flow to the face and exacerbate swelling. Avoid for 48 to 72 hours.

No lipstick, lip balm, or other lip . For the first 24 hours, leave the lips clean and untouched. The injection points are tiny in the skin barrier and shouldn’t be to product residue. After 24 hours, gentle lip balm is fine; can be reapplied with care.

No flying. Cabin pressure changes can worsen swelling and . Avoid flying for at least 48 hours after treatment, ideally a full week if possible.

No straws. The suction action when through a straw repeatedly stresses the lip tissue while the filler is still soft, potentially affecting placement. Drink from a glass for the first 48 hours.

No kissing or vigorous lip movement. Avoid kissing, exaggerated facial expressions, and "fish face" puckering while the filler settles. This isn’t about prudishness — it’s about not displacing soft, still-integrating product.

No smoking or vaping. Both restrict blood supply to the lips and impair healing. The repeated pursing action of smoking also stresses the injection sites. The longer you can avoid both, the better — at minimum 24 hours, ideally 5 to 7 days.

No salty or very spicy food. Salt promotes fluid retention and worsens swelling. Spicy food irritates the sensitised injection sites. Skip both for 48 hours.

No picking, scratching, or aggressive massage. Don’t touch the injection points more than necessary. If your injector has asked you to massage specific lumps, follow their exact instructions — uninstructed massage can break down filler or push it out of position.

No other facial treatments. Avoid Facials - mouse click the next web site,, laser treatment, microneedling, or any other procedure on the lower face for at least 2 weeks.

Week 1: continuing to settle

By the end of day 3, the worst of the swelling should have settled. Days 4 to 7 are typically when:

Continue to avoid extreme heat, very strenuous exercise, and other facial treatments through week 1. and lip balm are fine at this point. You can return to normal eating, gentle exercise, and most activities by day 3 to 4.

Week 2: the assessment point

At the 2-week mark, the filler has fully integrated and any residual swelling has resolved. This is the right time to assess the result honestly:

If anything isn’t right at 2 weeks, this is when to book a follow-up. Most experienced injectors include a 2-week review as standard, with the option to add a small top-up or address any residual issues. Patients who panic about asymmetry or appearance at day 3 or 5 are usually reassured at day 14.

When to call the clinic urgently

Most lip filler complications are minor and self-limiting. A small number require immediate medical attention:

Severe, pain beyond what’s expected from a routine procedure. The lips should be sore, not severely painful. Worsening pain over 24 to 48 hours is a sign.

Skin discolouration outside normal bruising patterns. White, mottled, dusky, or blue discolouration of the skin around the lips can indicate vascular occlusion — filler blocking a blood vessel. This is rare but a medical emergency requiring immediate treatment with hyalase. Don’t wait — call the clinic at the first sign of unusual skin colour.

Severe or swelling after the initial 48 hours, if accompanied by redness spreading beyond the lip area or systemic symptoms (fever, malaise). Could indicate allergic reaction or infection.

Hard, painful lumps that develop after the first week, particularly if accompanied by redness or warmth. May indicate infection or inflammatory reaction intervention.

Cold sores. Lip filler injection can trigger cold sore outbreaks in patients prone to them. If you have a history of cold sores, your injector may have prescribed antiviral medication prophylactically. New cold sores after treatment respond well to antivirals — contact the clinic for assessment.

Vision changes — extremely rare but a serious emergency. Filler entering a facial artery can travel back toward the eye via the ophthalmic artery network. Any visual symptoms after filler treatment require immediate medical attention.

At Centre for Surgery, hyalase is kept on-site for immediate reversal if needed. Any urgent concerns — call and ask for an emergency .

What if I don’t like the result?

Hyaluronic acid filler is reversible. (hyaluronidase) is an enzyme that breaks down HA, and a small injection of hyalase can dissolve filler within 24 to 48 hours. The lips return to their pre-treatment state, and re-treatment is possible about 2 weeks later if you want to try again with different placement or volume. For the full guide on the dissolving process, see .

This is one of the main reasons we use HA filler — it gives patients an exit option if the result isn’t what they hoped for. don’t offer this option and are not recommended.

For more on what can go wrong and how problems are managed, see our guide on .

How long the result lasts

Lip filler typically lasts 6 to 12 months on the first treatment, sometimes longer with subsequent maintenance as your tissue adapts. factors affect duration:

Metabolism — patients with faster metabolic rates break down HA filler faster. Younger patients and those who exercise vigorously often see shorter duration.

Smoking — significantly reduces filler longevity through vascular effects.

Sun exposure — UV damage accelerates filler breakdown. Daily SPF on the lips (in a balm or stick form) results.

Repeated treatment over time — many patients find duration increases on subsequent treatments as their tissue adapts.

For longer-lasting lip enhancement, surgical alternatives like provide permanent results without the need for ongoing maintenance — see and for the options. For the broader comparison between the surgical and injectable options, see our guide on .

Strategies to maximise filler longevity

Preparing for your next treatment

For maintenance or top-up treatment, prepare in the days before:

If you take any prescribed blood-thinning medication (warfarin, DOACs, antiplatelets), do not stop them without consulting your prescriber. Treatment can still proceed, but expect slightly more bruising.

Common questions

24 hours. After that, apply gently — avoid rubbing or pressing the lips while the filler is still settling. The injection points are micro-openings in the lip skin that should be allowed to seal before exposing them to product.

Wait until the local anaesthetic has fully worn off (2 to 5 hours after treatment) before consuming hot food or drink. Numbed lips can’t sense scalding heat — patients have burned on hot coffee without realising. Once sensation has returned, hot drinks are fine.

Light walking, gentle stretching, and yoga are fine 24 hours after treatment. Avoid anything that significantly raises your heart rate — heavy weights, running, intense cardio — for 48 hours.

At least 48 hours, ideally a week. Side sleeping puts pressure on the lips and can affect filler distribution while it’s still soft. After 7 to 10 days, the filler has integrated and side won’t displace it.

With moderate volumes and appropriate intervals between treatments, no. Repeated overfilling over years can stretch lip tissue, contributing to the "deflated balloon" appearance some patients develop when they later stop . Conservative volumes and regular dissolving of any accumulated filler prevent this. For more on this specifically, see our guide on .

The injection trauma can trigger cold sores in patients who carry the herpes simplex virus and have had cold sores before. Tell your injector if you have a cold sore history — prophylactic antivirals can be prescribed for 2 to 3 days before and after treatment.

No — we don’t perform elective injectable treatment during pregnancy or breastfeeding. The MHRA hasn’t approved lip filler use in these populations. Treatment can resume after.

Most patients need 0.5 to 1ml for an initial treatment, with a small top-up at 2 weeks if needed. Up to 2ml for more substantial enhancement. The right volume depends on your starting anatomy, goals, and what looks balanced for your face — not what you’ve seen on social media.

The 2-week review is essential and should be booked at the time of your initial treatment. After that, plan maintenance every 6 to 12 months based on how your particular lips respond. Don’t wait until the filler has completely worn off — small top-ups before that point produce more consistent long-term results than letting it fade fully each time.

For an overview of all the lip filler topics — managing complications, current trends, and surgical — see our guides on and .

Centre for Surgery · CQC-regulated · GMC · · · ·

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Centre for is a CQC-regulated private hospital on London’s Baker Street, delivering plastic and cosmetic surgery through GMC-registered specialist surgeons. Our expertise spans facial procedures including and , , for men, and body contouring procedures such as and . Patient safety, surgical excellence and natural-looking results sit at the heart of everything we do.

Centre for Surgery is a CQC-regulated private on London’s iconic , offering plastic and cosmetic surgery led by GMC-registered consultant surgeons.

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