| Feature | IGH | Tinea Versicolor | Vitiligo |
|---|---|---|---|
| Size | Small (1-5mm) | Variable | Variable, often larger |
| Shape | Round/teardrop | Irregular patches | Irregular patches |
| Location | Sun-exposed areas (arms, legs) | Chest, back, shoulders | Anywhere, often symmetrical |
| Texture | Smooth | May be slightly scaly | Smooth |
| Age of onset | Usually after 40 | Any age | Often starts young |
| Seasonal | Year-round | More noticeable in summer | Year-round |
Can You Prevent or Treat IGH?
Since IGH is linked to sun exposure and aging, the best prevention is sun protection:
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Use broad-spectrum sunscreen daily on exposed skin
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Wear protective clothing when outdoors for long periods
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Avoid tanning beds entirely
As for treatment: There’s no guaranteed way to make existing IGH spots disappear, but some people have success with:
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Topical retinoids – May help stimulate pigment production
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Cryotherapy – Freezing can sometimes trigger repigmentation (results vary)
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Microneedling – Some evidence suggests it may help
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Topical steroids – Prescribed by a dermatologist in some cases
Important: These treatments should only be pursued under a dermatologist’s guidance. What works for one person may not work for another.
