TL;DR
Stop picking, apply azelaic acid 10–20% or tranexamic acid, and wear SPF 50+ daily; most red-brown acne marks fade in 3–6 months.
- First step
- Stop picking and treat active acne
- Top actives
- Azelaic acid 10–20%, Tranexamic acid
- Non-negotiable
- SPF 50+ every morning
- Typical fade
- 3–6 months for red-brown marks
The direct answer
Acne marks are PIH triggered by the inflammation of a breakout. The fastest clearance comes from preventing new marks (no picking, control active acne) while fading existing ones with azelaic or tranexamic acid under daily sunscreen.
Step-by-step
- Keep active acne controlled so fewer new marks form.
- PM: azelaic acid 10–20% on marks, or tranexamic acid serum.
- AM: lightweight moisturiser + SPF 50+; UV is what re-darkens marks.
- Add niacinamide to support the barrier and even tone.
What to avoid
Do not scrub or use harsh physical exfoliants on fresh marks — micro-tears add inflammation and deepen pigment. Patience beats aggression.
FAQ
Why are my acne marks still there after the pimple is gone?
The pimple left melanin behind in the skin. The spot is healed but pigmented; it fades over months, faster with actives and sunscreen.
Will azelaic acid help red and brown marks?
Yes. Azelaic acid 10–20% targets both post-acne redness and brown pigment and is well suited to acne-prone, humid-climate skin.
Can I use it with my acne treatment?
Usually yes — azelaic acid pairs well with most acne routines. If you use prescription retinoids, apply them on alternate nights to reduce irritation.