
Kenalog
Kenalog 痘痘针 / 疤痕针
—About this treatment
Kenalog (triamcinolone acetonide) is the in-office cortisone injection at our Sunnyvale clinic that calms cystic acne, flattens keloids, and softens hypertrophic scars within 24–72 hours — a fast, targeted intralesional steroid trusted by Bay Area dermatology and aesthetic patients.
IndicationsWho it's for
- Cystic acne nodules calmed within 24–48 hours
- Keloids and hypertrophic scars flattened over a series
- Pre-event acne emergency rescue shot
- Earlobe keloid post-piercing treatment
- Razor-fast in-office procedure, zero downtime
- Decades of clinical safety data behind triamcinolone
Procedure
After a quick assessment of the lesion, our physician selects the appropriate Kenalog dilution (lower for facial acne, higher for thick keloids on the chest or earlobes). The area is cleansed with alcohol and the medication is injected directly into the lesion using an insulin syringe. Cystic acne usually needs only one shot per nodule; keloids and hypertrophic scars typically benefit from a series of 3–6 sessions spaced 4 weeks apart for maximum flattening.
Aftercare
Each injection takes under a minute. Our physician uses an ultra-fine 30G needle to deliver a microdose of dilute Kenalog directly into the inflamed cyst, keloid, or raised scar. Most patients feel only a brief pinch. Cystic acne nodules typically deflate and quiet down within 24–48 hours; keloid and scar flattening progresses over 4–6 weeks per session. No downtime — you can return to work, makeup, and exercise immediately.
FAQ
- How does it work?
- Triamcinolone acetonide is a long-acting synthetic corticosteroid that suppresses local inflammation and inhibits fibroblast collagen overproduction. When injected intralesionally at carefully calibrated low concentrations (typically 2.5–10 mg/mL), it shrinks inflammatory acne nodules, halts keloid fibroblast proliferation, and remodels excess scar collagen — all without affecting surrounding healthy skin or producing systemic side effects when properly dosed.
Risk notice
All cosmetic procedures carry risk: allergic reactions, infection, irreversible changes, suboptimal outcomes. Discuss your health history and expectations with the doctor in person.
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