Shaunda Ndam

frequent wearing of sunscreen can help treat melasma by preventing it from worsening

*Exogenous Ochronosis*

*What it is:*
A skin condition where bluish‑black patches appear due to long‑term use of certain chemicals (hydroquinone, phenol, resorcinol, etc.) found in skin‑lightening creams or medicines.

*Key Points:*
- *Cause:* Prolonged use of offending agents (common in bleaching creams).
- *Symptoms:* Painless gray‑blue or brown patches, usually on face, neck, hands.
- *Diagnosis:* Clinical exam + history; sometimes biopsy.
- *Treatment:* Stop the causative agent, sun protection, topical retinoids, azelaic acid, laser therapy.
- *Prevention:* Avoid high‑risk creams, use sunscreen (SPF 30+), regular dermatologist check‑ups.