Filler complications in Singapore:
hard lumps after filler and skin boosters

Filler complications: what they are and how they show

Most filler treatments settle without trouble. When something does go wrong, it usually falls into one of a handful of patterns, and each has a different first step. The table sets out the common filler complications, when they tend to appear, what you notice and where each one is covered in detail.

Swipe sideways to see the whole table.

The last row is an emergency and is covered below and on the complication care page. The rest of this page is about the problem Dr Sin Yong is seeing more of: hard lumps that stay, often after filler and skin boosters have been mixed in the same part of the face.

Hard lumps after filler: why they form

A lump after filler is not one condition. It can be product placed too close to the surface or in too large an amount, product that has clustered or moved, a collagen response around the particles of a collagen-stimulating filler, inflammation linked to bacteria or an immune reaction, or a mix of all of these. What makes a lump feel hard is usually dense material, a capsule of collagen around it, or long-standing inflammation.

Lumps after filler mixed with skin boosters

Dr Sin Yong has recently been seeing more patients whose lumps followed a mix of filler and skin boosters, sometimes placed over several years: a hyaluronic acid filler for volume, a skin booster for quality, and a collagen stimulator such as poly-L-lactic acid (PLLA), polycaprolactone (PCL), calcium hydroxylapatite (CaHA) or poly-D,L-lactic acid (PDLLA) for support. Each behaves differently in the tissue. Some stay where they are placed, some draw in water, and some prompt the body to lay down collagen around them.

The pattern is consistent: firm nodules that can be felt and sometimes seen, puffiness, heaviness or distortion that changes the natural shape of the face, and in some areas hard lumps that press on the tissue around them. Where that pressure sits close to the surface, small red blood vessels can become visible over the lump. Reports in the medical literature also describe lumps containing several different filler materials in the same sample, which makes them harder to diagnose by feel alone.

Why mixed lumps cannot simply be dissolved

Hyaluronidase dissolves hyaluronic acid and nothing else. Collagen stimulators, skin boosters that are not made of hyaluronic acid, and the collagen the body has built around them do not respond to it, so a lump made of mixed material cannot simply be dissolved. That is why the first question is always what the lump is made of, and why ultrasound comes before any plan.

“For hard lumps from mixed products, I use one tool, Time Freeze Laser LCLR®, to target the material without surgery.”

Dr Sin YongOn hard lumps after filler and skin boosters

Hard lumps by product: filler, collagen stimulators and skin boosters

The material inside a lump decides what can act on it. This is how the common products behave when they form a lump, and what is considered here.

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A lump that is infected or actively inflamed is treated medically before any device is considered. This does not mean skin boosters commonly cause lumps on their own; the pattern Dr Sin Yong is seeing involves products layered together. For more on the collagen-stimulator group, see collagen-stimulator nodules and migration and lumps after poly-L-lactic acid.

Hard lumps by area: lips, under the eyes, cheeks, chin and jawline

Where a lump sits changes what it is likely to be and how carefully it has to be approached.

Lumps in the lips after filler

The lips are where lumps are noticed most, because the tissue is thin and constantly moving. A lump in the lip after filler can be a bead of product placed too superficially, an overfilled area, product that has moved beyond the lip border, or a late inflammatory nodule. A small pale bump inside the lip may be product or another lip condition, such as a mucous cyst, so it is examined before anything is done. See lip filler for how the lips are planned.

Lumps under the eyes

Under-eye skin is thin, so even a small amount of product can show as a ridge, puffiness or a blue tint. The under-eye filler lumps and nodules guide covers this area in full. Dr Sin Yong uses the Sculpting mode of Time Freeze Laser LCLR® under the eye too, after assessment and ultrasound.

Cheek, temple and mid-face lumps

Product in the cheeks and temples usually sits deeper, and collagen stimulators are often used here, so layered material is common. Lumps can be felt along the cheekbone or show as heaviness in the mid-face. See cheek fillers for how the area is normally treated.

Chin, jawline and nose

These areas take firm products placed on bone, so a lump can be product, a step in the contour or the bone itself, which is one reason ultrasound helps. The nose has a vessel pattern that calls for particular care. See chin enhancement for how the chin is assessed.

Is it normal to have a lump after filler?

In the first days after filler, some firmness, swelling and small irregularities are common, especially in the lips, and they usually settle as the swelling goes down. A lump is worth having assessed if it stays after the swelling has settled, appears later, feels hard, grows, or changes the shape of your face.

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Should you massage a filler lump?

Only if the doctor who examined you has advised it. Gentle massage can help a soft, early irregularity of hyaluronic acid, but it does not help a hard nodule and can irritate an inflamed one. There is no safe way to dissolve filler at home: do not inject anything, apply heat devices or press hard on a lump. Contact a doctor instead.

When a lump or change after filler is urgent

Most lumps are not emergencies, but some changes after filler are. Skin that turns white, dusky or mottled, pain that is severe or getting worse, or blister-like spots can mean a blood vessel is affected: contact the doctor who injected you straight away, or go to A&E if you cannot reach them. Any change in vision after filler is an emergency: go to the nearest hospital emergency department or call 995.

A lump that becomes red, hot, painful or quickly larger, especially with fever, needs prompt medical review because it can mean infection. The signs are set out in full on vascular occlusion warning signs and complication care after treatment.

Is surgery the only option for hard filler lumps?

Some patients with hard lumps come to the clinic having been offered surgical removal as the only option. Surgery has a place: where a nodule is discrete and suits excision, Dr Sin Yong refers for a surgical opinion. It is not the only route, and it carries its own risks.

What surgical removal of filler can involve

• Nerve injury. Facial nerves run close to many filler areas. Injury can cause numbness, facial weakness or asymmetry.
• Scarring. Removing material through the skin leaves a scar, and on the face a scar can be visible.
• Dents and contour change. Where the lump is woven into deeper structures, removing it can disturb them and leave a dent or an irregular contour.

Published options for filler nodules also include antibiotics for infection, steroid injections with or without 5-fluorouracil for inflammatory nodules, and laser-based treatment, which has been described in the medical literature with ultrasound used to plan it. Those studies used a different technique, with a laser fibre placed inside the lump. The question at assessment is whether the material can be targeted without an incision first, and that is decided from the ultrasound, the type of product and where it sits, not from the size of the lump alone.

How Time Freeze Laser LCLR® targets hard lumps without an incision

LCLR® stands for Laser Collagen Lipo Remodelling. It is a proprietary protocol developed by Dr Sin Yong on a long-pulsed 755 nm and 1064 nm laser platform, and he performs every treatment himself. Its Sculpting mode is built to target excess material. For filler complications, it is the tool he uses on hard lumps from mixed products: PCL nodules, excess PDLLA, layered hyaluronic acid and migrated PLLA, including where these have been combined with skin boosters.

Why it suits mixed material

Because it does not depend on dissolving one particular product, the same approach can be used where hyaluronic acid, a skin booster and a collagen stimulator sit together. The energy is directed at the area ultrasound has mapped, and the skin is not opened or cut.

What the treatment is like

• No incision and no stitches.
• No redness, no downtime.
• The treated area is reassessed before you leave, and the plan for any further visit is set from what is seen.

Every face and every lump is different, so the response varies from person to person. Like any medical treatment, laser has its own risks and limits, which Dr Sin Yong explains at the assessment alongside the alternatives. How it compares with dissolving is set out in hyaluronidase vs Time Freeze Laser LCLR®.

Why skin-tightening devices are not the tool for hard lumps

Some patients arrive having already tried skin-tightening treatments for their lumps. High-intensity focused ultrasound, such as Ultherapy, and monopolar radiofrequency, such as Thermage, heat chosen layers of tissue so that the skin tightens over time. They are designed and studied for tightening loose skin, not for removing filler, so they are not a reliable way to treat a hard lump.

Dr Sin Yong uses these devices for what they are built for, loose skin, and uses the Sculpting mode of Time Freeze Laser LCLR® for excess material, because it is directed at the area ultrasound has mapped. What each lifting device actually does is compared on HIFU in Singapore.

What happens at a filler complications assessment

1. History. What was injected, where, when and by whom, as far as is known, along with any treatment already tried.
2. Examination and ultrasound. Each lump is felt, photographed and mapped with ultrasound to help show what it is and how deep it sits.
3. The plan. Dr Sin Yong explains what he would treat, what he would not, and what decides the fee, in writing.
4. Treatment. Where it suits, the Sculpting mode of Time Freeze Laser LCLR® is applied to the mapped areas.
5. Before you leave. The area is reassessed and aftercare is explained.

Ultrasound first: what the scan shows

Different fillers look different on ultrasound. The scan helps tell hyaluronic acid from collagen-stimulator material, even when you do not know what was injected. It also shows how deep a lump sits and how it relates to nearby vessels.

It helps show whether a lump is filler at all, because a lymph node, cyst or swelling can feel similar under the finger. Where the picture is still unclear, further tests may be needed.

What to bring

The names of the products used, the dates and the clinic notes or receipts if you have them, photos from before treatment, and a list of your medicines. If you have no records, the assessment still goes ahead.

Treated elsewhere or overseas

You do not need to have been treated here. Doctors can refer patients with suspected filler complications, as set out on for GPs: when to refer, and patients travelling from overseas can plan their visit through international patients.

Aftercare in broad terms

Normal skincare and make-up can be resumed as advised on the day. Avoid massaging or pressing on treated lumps unless you have been told to, and contact the clinic promptly if an area becomes red, hot, painful or larger.

What decides the plan for filler complications

There is no single plan for every lump. The approach and the fee are set from what the assessment finds:

• The products involved, and whether they are mixed or layered.
• How many lumps there are, how large they are and how deep they sit.
• The area: the lips, under the eyes, the cheeks, the chin, the jawline or elsewhere.
• Whether the lump is stable or shows signs of inflammation or infection.
• How long ago the products were placed, and what has already been tried.

Fees are explained at the consultation once the lumps have been assessed. See how we quote for what is and is not included.

How Dr Sin Yong approaches filler complications

Dr Sin Yong examines every patient himself on Orchard Road and maps each lump with ultrasound before anything is planned. His approach is to correct with the least invasive route that suits the material: the Sculpting mode of Time Freeze Laser LCLR® where the lump can be targeted without an incision, and referral where a discrete nodule is better removed surgically.

He developed the LCLR® protocol himself and has presented it to international key opinion leaders in laser dermatology, and he has been invited to share his clinical expertise in Seoul, Dubai, Bangkok and São Paulo. He does not add more product to hide a lump. Where the face has lost shape because of the lumps, that is considered only after they have been addressed, so that new material is not placed on top of old.