Post-Inflammatory Hyperpigmentation

Post-inflammatory hyperpigmentation (PIH) is darkened skin that appears after inflammation or injury, including acne, eczema, or trauma. More common in darker skin tones. Fading takes months, but treatment can speed the process.

Table of Contents

Quick Facts

  • ICD-10: L81.0

Prevention

  • Treat acne and other inflammation early
  • Avoid picking or scratching
  • Daily broad-spectrum sunscreen (essential)

Treatment

  • Hydroquinone (4%) for limited periods
  • Retinoids (tretinoin, adapalene)
  • Azelaic acid
  • Vitamin C serums
  • Niacinamide
  • Chemical peels and laser (with caution in darker skin)

Related Conditions

Skin Discoloration

Broader symptom

 Atopic Dermatitis

Common cause
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.

References

  • American Academy of Dermatology. PIH Resources.