Dark Spots After a Flare: Understanding and Treating Post-Inflammatory Pigmentation

What Are These Dark Spots?

If you’ve noticed dark patches or discoloration after a flare, you’re not alone. Post-inflammatory pigmentation (PIH) is one of the most common concerns for people with eczema or psoriasis. It happens when inflammation causes your skin to overproduce pigment as part of its healing response.

In lighter skin tones, this often shows up as pink or red spots. In darker skin tones, it typically appears as brown or deeper patches. It’s your skin’s way of healing — and with the right approach, it can improve significantly over time.

Why Treating the Trigger Comes First

PIH is a secondary response to inflammation — which means new spots will keep forming as long as the underlying condition is active. Getting your eczema or psoriasis under control is just as important as the treatments targeting the pigmentation itself.

Your Zest care team will work with you on both at the same time, building a plan that addresses the root cause and the visible effects together.

Treatment Options Your Care Team May Recommend

Effective treatment works at different stages of pigment production. Your provider may recommend a combination based on your skin tone, the depth of discoloration, and your overall skin health. Common options include:

• Pigment inhibitors — Ingredients like hydroquinone, kojic acid, and arbutin help slow the production of new pigment. These are often the foundation of a PIH treatment plan.
• Exfoliants — Retinoids, glycolic acid, and salicylic acid help speed up the shedding of existing pigmented skin cells. These can be very effective but should be introduced gradually to avoid irritation.
• Brighteners — Vitamin C and niacinamide help block pigment transfer and protect the skin from further damage. These are generally well-tolerated and can be used alongside other treatments.
• Targeted treatments — Tranexamic acid works by interrupting the inflammatory signals that trigger pigment production — making it especially useful for PIH tied to ongoing inflammation.
• Procedural options — For deeper or more stubborn pigmentation, your care team may discuss options like chemical peels or laser therapy. These are typically considered when topical treatments alone aren’t achieving the results you want.

A Few Important Things to Know

Results take time. Visible improvement typically takes 8 to 12 weeks of daily, consistent treatment. This can feel slow — but staying the course is what makes the difference.

A few habits that support your treatment:

• Wear SPF 30 or higher every day — This is non-negotiable. Sun exposure can darken spots and undo weeks of progress. Mineral-based sunscreens with zinc or titanium dioxide work especially well.
• Keep your skin barrier healthy — Hydration and gentle cleansing are just as important as active lightening ingredients. A compromised barrier slows everything down.
• Avoid picking or scrubbing — Physical irritation can trigger more inflammation and more pigmentation. 

Not sure which treatments are right for your skin tone and type? Your Zest care team will build a plan that’s tailored specifically to you. Reach out anytime through your portal.