20 Sep Cystic Acne in Singapore: Deep Bumps, Assessment and Treatment
By Dr Rachel Ho | Aesthetic Doctor, Founder, The Skin Longevity Clinic, Singapore
A deep tender bump can be difficult to ignore, particularly when it lingers or another appears before the first has settled. Understanding what lies beneath the surface helps explain why repeated spot treatments or squeezing may leave you disappointed.
Cystic acne is a common term for deeper inflammatory acne, including nodules that may be painful and associated with scarring1. Our acne assessment guide explains the full range of care; this article focuses on decisions for deeper lesions.
What is the difference between a pimple and a nodule?
Acne includes blocked pores, smaller inflammatory spots and deeper lesions, and several types can occur together1. The depth, distribution and consequences of the acne matter alongside the total number of spots1.
Describe how a lump began, whether it is tender and how long it has remained. A persistent solitary lump or rapidly changing swollen area deserves examination rather than an assumption that every bump is acne.
Why can deeper acne leave scars?
Acne is an inflammatory disease of the follicle and oil gland, and its effects can include lasting changes in skin structure2. Controlling the active disease is therefore a separate task from treating any scars that have already formed2.
Tell your doctor about new indentations, raised scars or recurring lesions in the same area. The aim of the appointment is to decide what needs treatment now and how the response will be monitored.
What should the consultation cover?
Prepare a record of previous creams, tablets and procedures, including how long you used them and why they were stopped. Mention all affected areas, even when the face is your main concern.
| Detail to bring | What to clarify |
|---|---|
| Duration and recurrence | Is this one persistent lesion or repeated new inflammation? |
| Previous prescriptions | Was treatment ineffective, poorly tolerated or stopped early? |
| Marks and scars | Which changes reflect active acne and which are residual? |
| Medicines and supplements | Could the treatment history affect the next prescription? |
| Pregnancy or fertility plans | Which options need to be changed or avoided? |
| Effect on daily life | How are pain, confidence and practical routines being affected? |
When a menstrual pattern is part of the history, our hormonal acne guide explains the additional questions. The pattern still needs to be considered together with lesion severity and medical suitability.
What treatments may be considered for cystic acne?
The choice is between appropriate medical options, rather than simply increasing the strength of an exfoliating product. Ask the prescriber to explain the purpose of each component, expected review points and what would justify changing the plan.
Topical and oral treatment
For more severe acne, treatment commonly combines suitable topical agents with an oral medicine selected for the individual1. When antibiotics are used, current guidelines recommend limiting their duration and pairing them with appropriate topical treatment rather than using them as an indefinite standalone solution3.
Discuss previous antibiotic courses and any difficulties with the accompanying skincare. A clear plan for reassessment matters as much as the initial prescription.
When isotretinoin may be discussed
The 2024 AAD guideline strongly recommends oral isotretinoin for severe acne, acne causing scarring or substantial psychosocial burden, and acne that has failed standard treatment3. The decision is based on the complete clinical picture rather than requiring every patient to try repeated cosmetic procedures first3.
Isotretinoin requires a prescribing review and follow up, and it must not be used during pregnancy4. Ask about the monitoring, side effects and pregnancy prevention requirements that apply to your circumstances before starting treatment.
Treatment for an individual large lesion
A doctor may consider an intralesional corticosteroid injection for a selected large inflammatory acne lesion3. This treats a particular lesion and should be considered separately from the plan for recurring acne elsewhere.
Ask what improvement is expected from the injection and what local side effects should be discussed. An assessment is important before treating a deep lump as a routine cosmetic extraction.
Can a chemical peel or facial treat deep acne?
Ask what the proposed treatment is intended to change: blocked pores, a current inflamed nodule or a mark from an older breakout. A procedure that addresses one concern should not automatically become the plan for all three.
Our chemical peel guide explains the procedure separately. Reading about peels does not replace assessment for severe or scar forming acne, for which guideline supported medical treatment may be appropriate3.
What can you do while waiting for review?
Leave the lesion intact rather than squeezing, puncturing or attempting to drain it. Keep a record of its progress and contact the clinic if the pain or swelling is increasing.
Seek prompt in person assessment for a rapidly worsening swollen area, spreading redness or fever, particularly when the diagnosis is uncertain. These changes should be evaluated rather than managed by repeatedly adding stronger spot treatments.
Bring your existing skincare to the appointment and explain any burning or peeling. Dr Rachel Ho’s skin barrier guide is useful background when acne treatment has become difficult to tolerate.
Can cystic acne return after treatment?
Recurrence remains possible even after oral isotretinoin, as documented in a large observational study of patients treated for acne5. That study describes population outcomes and does not provide an individual guarantee of remission or relapse5.
At follow up, ask how maintenance will be approached and which new lesions should prompt another appointment. Keep treatment for active breakouts separate from any later discussion of scar procedures.
Planning costs and follow up in Singapore
Ask about the assessment fee, medicine costs, any monitoring tests and the review schedule. A quotation for treating one lesion should be distinguished from the cost of managing a recurring condition.
Tell the clinic about upcoming travel and whether follow up can be attended as planned. Avoid making a short holiday or important event the only basis for choosing a treatment course.
Taking the next step
Persistent pain, repeated deep lesions or developing scars are good reasons to arrange a clinical discussion3. Bring photographs of earlier flares so a quieter appointment day does not leave out the history.
Contact The Skin Longevity Clinic to ask about assessment with Dr Rachel Ho. The discussion can focus on confirming the problem, selecting suitable care and preventing avoidable delays in reviewing the response.
References
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Eichenfield DZ, Sprague J, Eichenfield LF. Management of Acne Vulgaris: A Review. JAMA. 2021;326(20):2055–2067. doi:10.1001/jama.2021.17633. Read the source
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Moradi Tuchayi S, Makrantonaki E, Ganceviciene R, et al. Acne vulgaris. Nat Rev Dis Primers. 2015;1:15029. doi:10.1038/nrdp.2015.29. Read the source
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Reynolds RV, Yeung H, Cheng CE, et al. Guidelines of care for the management of acne vulgaris. J Am Acad Dermatol. 2024;90(5):1006.e1–1006.e30. doi:10.1016/j.jaad.2023.12.017. Read the source
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Ly S, Kamal K, Manjaly P, Barbieri JS, Mostaghimi A. Treatment of Acne Vulgaris During Pregnancy and Lactation: A Narrative Review. Dermatol Ther (Heidelb). 2023;13:115–130. doi:10.1007/s13555-022-00854-3. Read the source
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Lai J, Barbieri JS. Acne Relapse and Isotretinoin Retrial in Patients With Acne. JAMA Dermatol. 2025;161(4):367–374. doi:10.1001/jamadermatol.2024.5416. Read the source