Skincare After Subcision — What to Use, What to Avoid, in 3 Phases
Dr. Big's post-subcision skincare for acne scars in 3 phases (Day 0–3 / 4–14 / 14+) — what you can use, what to avoid, so you don't waste the treatment. Acne scar clinic Ratchathewi, near BTS.
Quick answer: Manage post-subcision skincare in 3 phases — Day 0–3 keep it gentlest (mild cleanser, ceramide moisturizer, no scrubs or actives), Day 4–14 make daily SPF 50 the hero, and from Day 14 gradually return to retinol or acids. Right-timing care protects the freshly-built collagen so acne scars can improve ~60–80%.
After subcision for acne scars, the question Dr. Big hears most is — “What can I use at home, and what should I avoid?”
He answers in an easy-to-remember way, split into 3 phases as the skin repairs — because wrong-timing care, especially rushing back to strong actives too soon, wastes the treatment you just paid for.
Why post-treatment skincare matters as much as the procedure
Subcision uses a needle to release the bands under the scar so the body builds new collagen to fill it. This first batch is still “young” and very fragile, so what you apply now directly affects how well collagen forms. In short — the procedure opens the path for repair, but the first 14 days of self-care decide whether the result is full.
Phase 1: Day 0–3 — still wounded inside, be gentlest
The surface may look normal, but inside it’s still wounded from the release. The rule is gentle, and don’t disturb:
- Wash gently with clean water and a mild cleanser (no fragrance, no acids)
- Apply a ceramide moisturizer to seal the barrier so skin can repair
- No scrubs, no exfoliation, no facial massage at all
- For mild redness/swelling, a cold compress is fine — normal during recovery
Phase 2: Day 4–14 — sunscreen is the hero
Skin starts repairing but is still fragile. The single most important thing — SPF 50 sunscreen every day. Why? Sun destroys the freshly-stimulated collagen and easily triggers dark marks (PIH) in just-treated skin.
- Sunscreen every day, even indoors or cloudy (UVA passes clouds and glass)
- While fragile, a physical/mineral formula is gentler
- Don’t rush back to strong actives like retinol or acids yet
Phase 3: Day 14 onward — gradually return to actives
After 2 weeks, skin is strong enough for actives, but start small:
- Resume retinol or AHA/BHA, but begin 2–3 nights/week
- Watch how skin responds — if it stings or reddens, step back
- If unsure, ask the doctor before returning to your old routine
First 14 days = gentle + sunscreen · after that, give skin time to work.
Common mistakes
Rushing back to retinol/acids in the first days (skin isn’t ready — irritation and dark marks) · forgetting sunscreen or applying too little (a top cause of incomplete results) · scrubbing because skin is peeling (harms repairing skin) · changing many products at once (keep it simplest now).
Frequently asked questions
Q: Can I wash my face right after subcision? A: Yes, but gently with a mild cleanser and clean water — avoid hard rubbing at the treated spots.
Q: How many days until I can wear makeup? A: Usually 2–3 days once there’s no open wound, but it varies — the doctor advises at follow-up.
Q: When can I resume retinol? A: Usually after 14 days, starting small; if skin is still red or peeling, wait until it settles.
Q: Do I need sunscreen even staying indoors? A: Yes — UVA passes glass and clouds; daily application protects the new collagen.
Q: Where can I ask about aftercare? A: At Clarity Clinic Ratchathewi, near BTS, easy to reach from Siam, Phaya Thai, all of Bangkok — message LINE with any question.
Summary
Post-subcision skincare needn’t be complex — 3 phases: Day 0–3 gentlest, Day 4–14 sunscreen as hero, Day 14+ gradually return to actives. Right-timing care means not wasting the treatment and is part of what lets acne scars improve fully.
Contact:
- LINE: @clarityclinic — send a photo of your acne scars for Dr. Big to review
- Location: Spring Tower, B Floor · Ratchathewi, near BTS (Siam, Phaya Thai, all Bangkok)
- Free 30-minute consult with Dr. Big in person
- Price 5,000 baht/session including all main procedures · pay per session, no course packages
Read next:
- No sunscreen after acne scar treatment = burning money
- Why wait 4–8 weeks between sessions
- The Clarity treatment process
References
Outcomes vary by individual; this article is educational, not a substitute for in-person medical assessment.