Dark marks after pimples: why they happen in brown skin and how to help them fade
What post-inflammatory hyperpigmentation is, why it is common in Indian skin, how long it lasts and the gentle, sun-safe way to help it fade.
2 min read · Updated 2026-11-14
What the marks are
When skin is inflamed by acne, a bite, a burn or a rash, pigment cells can overreact and leave extra melanin behind. The result is a flat brown, dark brown or grey patch called post-inflammatory hyperpigmentation.
Why brown skin gets them more
A 2010 review in the Journal of Clinical and Aesthetic Dermatology explains that PIH can affect anyone but is more frequent and more intense in darker skin. A study it cites from Singapore found PIH more common in Malays and Indians than in lighter-skinned groups, suggesting that the amount of pigment matters.
How long they last
Marks in the upper skin are tan to dark brown and may take months to years to fade without help. Blue-grey marks sit deeper and can last longer.
What helps
- Treat the cause early. Calming acne prevents new marks.
- Hands off. Picking makes deeper, longer-lasting marks.
- Sunscreen every day. UV and visible light darken existing marks.
- Be gentle. Irritation creates more pigment, so avoid harsh scrubs and home remedies like lemon.
- See a dermatologist for stubborn marks; there are safe, effective treatments.
Where herbal care fits
A gentle routine with a mild face wash and an occasional lepa keeps skin comfortable and helps it look fresher. Licorice extracts are among the ingredients dermatologists use for uneven pigment. We speak about an even-looking, healthy glow, never about lightening.
This guide is general information, not medical advice.
Questions
Are dark marks the same as scars?
No. Flat brown marks are pigment, not damaged tissue, and usually fade. Pitted or raised marks are scars and need a dermatologist.
How long do dark marks last?
Brown marks in the upper skin may take months to fade without treatment. Blue-grey marks deeper in the skin can last longer.
Will lemon juice or toothpaste fade marks?
No. They irritate skin, and irritation can create more pigment.
Sources
- Davis EC, Callender VD. Postinflammatory hyperpigmentation: a review of the epidemiology, clinical features, and treatment options in skin of color. J Clin Aesthet Dermatol 2010;3(7):20-31
- Fatima S et al. The role of sunscreen in melasma and postinflammatory hyperpigmentation. Indian J Dermatol 2020;65(1):5-10
This guide is general information about traditional and natural care. It is not medical advice. For a skin, scalp or health condition, speak to a dermatologist or qualified practitioner.
