What to know about post-inflammatory hyperpigmentation in skin of colour

Inflammation can stimulate pigment-producing cells. After the original spot, rash, burn, bite, or procedure settles, the affected area may remain brown, grey, or deeper than the surrounding skin. Skin of colour can develop visible pigment change after relatively minor irritation, including picking, friction, or an unsuitable product. The colour is usually flat rather than raised. It is not the same as an active infection, but a continuing rash or acne can create new marks while older ones fade.

Treat the trigger as well as the mark: control acne, eczema, or irritation with a clinician’s guidance and avoid picking. Use a gentle cleanser, moisturiser, and broad-spectrum sunscreen on exposed areas. Introduce one new product at a time and stop it if burning or persistent redness occurs. A dermatologist may discuss pigment treatments such as topical medicines or carefully selected procedures; skin of colour needs conservative planning because irritation can deepen pigmentation. Improvement is gradual, so avoid unregulated lightening products.

Book a dermatology assessment if a mark is changing quickly, bleeding, painful, raised, or unlike your other marks. Seek care for ongoing inflammation, spreading redness, pus, or fever. Arrange review when pigmentation follows a procedure and becomes increasingly irritated, or when it affects your wellbeing despite gentle care. A clinician can distinguish post-inflammatory change from melasma, a medication reaction, or another skin condition and tailor treatment to your skin tone.

What triggered this pigmentation? Is the underlying inflammation still active? Which products are suitable for my skin tone? How can I reduce irritation during treatment? Would a procedure carry a risk of worsening the marks?