Overfilled, puffed-up or unnatural-looking filler results — often called 'pillow face' — can be reversed and refined. Dr Sin Yong uses ultrasound-guided hyaluronidase to dissolve excess or misplaced hyaluronic acid filler, locating each deposit under real-time imaging before treatment, then guides patients through a carefully considered restoration of natural facial proportions.
Pillow face occurs when filler has been over-placed — either too much volume in total, placement in the wrong anatomical planes, or filler in locations that create an unnatural appearance. Cheeks that look artificially protruberant, lateral cheek bulging, loss of natural skeletal definition, and an overall 'puffy' look are characteristic. This can result from a single over-treated session or from accumulation of filler over multiple sessions without allowing previous product to metabolise.
The first step in addressing pillow face is dissolution of the excess or misplaced HA filler using hyaluronidase enzyme. Dr Sin Yong maps the distribution of filler using clinical examination together with ultrasound imaging, then dissolves selectively — targeting the areas contributing most to the unnatural appearance while preserving areas where volume is appropriate. This ultrasound-guided filler dissolving approach allows hyaluronidase to be placed into the filler deposit itself, rather than the surrounding tissue. After dissolution and a period of healing, natural proportions are reassessed and refinement filler can be placed if desired.
Not every unnatural result needs more filler to correct it. When a face looks overfilled, the instinct at some clinics is to add further volume to balance or lift — but adding product to an already over-volumised face often deepens the very problem a patient came in to resolve.
Dr Sin Yong's approach to pillow face is the opposite: identify what is excessive, and let it go down. Where hyaluronic acid filler is the cause, ultrasound-guided hyaluronidase allows the excess to be dissolved selectively, returning the face toward its own natural proportions rather than layering more on top.
Dissolve over-placed cheek filler that creates an overly protruberant, unnatural or 'apple cheek' appearance.
Address filler that has migrated laterally or been placed in the lateral cheek, creating bulging or distortion of the facial oval.
Dissolve overfilled or misplaced under-eye filler that causes puffiness, bluish discolouration or exacerbation of hollowing.
When excess filler obscures the natural bone structure of the cheeks, jaw and temples, dissolution restores the natural skeleton.
Address filler that has accumulated over many sessions across multiple providers, creating an unnatural total volume.
Dissolve filler that has migrated from its original placement site, creating bulging or asymmetry.
When filler has been placed over several sessions or across different providers, its exact location and depth are rarely known. Dr Sin Yong uses ultrasound imaging to see where hyaluronic acid filler sits beneath the skin before any hyaluronidase is placed. Being able to dissolve filler with ultrasound guidance means the enzyme can be directed into the filler deposit itself, while mapping the position of nearby vessels and structures.
For pillow face specifically, this matters because the goal is selective — reducing over-volumised areas while leaving appropriate volume untouched. Dr Sin Yong's approach is to palpate and take a full history first, assess the face in both static and dynamic movement, and mark out the areas of concern — and only then use ultrasound to confirm that particular zone before any hyaluronidase is placed. Ultrasound-guided hyaluronidase supports this selectivity: each deposit is located, assessed for depth, and treated in a targeted way. Where filler cannot be visualised or has broken into very small pockets, Dr Sin Yong discusses the limitations openly at consultation, as complete removal is not always possible in a single round.
Dr Sin Yong begins with a thorough history and clinical palpation, then assesses the face both static and in movement to understand how the filler behaves dynamically. The relevant areas are marked out, and ultrasound imaging is then used to visualise each marked zone — confirming the location and depth of filler beneath the skin. Pre-treatment photography establishes baseline.
A selective dissolution plan identifies areas to dissolve and areas to preserve. Under ultrasound guidance, hyaluronidase is diluted and directed into the mapped filler deposits at target locations.
Hyaluronidase is injected at planned sites. Dissolution occurs over 24–72 hours. Multiple sessions may be needed for heavy filler loads.
At 2–4 weeks, Dr Sin Yong reassesses the natural face after dissolution. If refinement filler is desired, a new placement plan is designed based on natural proportions.
Hyaluronidase dissolves hyaluronic acid (HA) fillers only. Non-HA fillers (Radiesse, Sculptra, Ellanse, Juvederm Voluma if not HA-based) cannot be dissolved with hyaluronidase. Dr Sin Yong assesses the likely composition of your filler at consultation.
Ultrasound-guided filler dissolving uses high-resolution ultrasound imaging to locate hyaluronic acid filler beneath the skin before hyaluronidase is placed. Seeing the depth and position of each deposit — and of nearby vessels — allows Dr Sin Yong to direct the enzyme into the filler itself and to work selectively, which is particularly useful in pillow face where the aim is to reduce some areas while preserving others.
Filler can be dissolved without imaging, but the injector is then relying on palpation and estimation of where the filler sits. Using ultrasound to dissolve filler adds real-time visualisation of the deposit and surrounding anatomy. Dr Sin Yong uses ultrasound guidance as part of the assessment and dissolution process for pillow face correction.
Mild overfilling may resolve with a single session. Heavy filler loads accumulated over many sessions typically require 2–3 rounds of hyaluronidase, and repeat rounds can be performed 5–14 days apart rather than weeks apart.
You will look like your natural self — which may feel unfamiliar if you have had filler for a long time. Some patients experience a brief period of apparent hollowing before natural tissue rehydrates. Dr Sin Yong prepares you for this at consultation.
Dr Sin Yong recommends waiting at least 1 week after dissolution before placing any new filler. This allows the hyaluronidase to clear and the tissue to settle so that natural proportions can be reassessed before any new product is placed.
Yes. Working with an experienced injector who uses restraint, anatomical knowledge and a philosophy of less-is-more prevents overfilling. Dr Sin Yong's approach emphasises natural results and conservative volume placement.
Patients who have experienced pillow face frequently discover that structural lifting — rather than additional volume — is what their face actually needs. Dr Sin Yong's two proprietary lifting protocols deliver structural rejuvenation that reduces reliance on filler over time.
Pillow face treatment in Singapore involves careful, ultrasound-guided filler dissolving to reduce over-volumised areas and restore natural facial proportions. Dr Sin Yong uses ultrasound imaging to locate hyaluronic acid filler before hyaluronidase is placed, so that filler can be dissolved with ultrasound guidance in a targeted way at his aesthetic practice on Orchard Road — within convenient reach of Somerset, City Hall and the wider Central and town areas of Singapore.
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