Post-Herpetic Hypopigmentation or Hyperpigmentation
Check and manage Post-Herpetic Hypopigmentation or Hyperpigmentation
An HSV 1 IgG blood test checks for antibodies to herpes simplex virus 1. Antibodies are proteins your immune system makes after exposure.
A positive result can support past HSV 1 infection when pigment changes followed sores in the same area. It does not prove an active outbreak.
Testing and tracking matter because pigment changes can look like other skin conditions. Monitoring the area helps you spot fading, new lesions, or signs that need medical care.
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We can help you check your HSV 1 result and manage skin changes.
What is Post-Herpetic Hypopigmentation or Hyperpigmentation?
You may see lighter or darker skin after a cold sore or HSV 1 skin outbreak heals. This can happen when inflammation changes how your skin makes pigment.
These marks are often called post inflammatory pigment changes. They are not the same as an active herpes outbreak.
Symptoms
- Lighter patches where sores healed.
- Darker patches where sores healed.
- Flat marks that match the old outbreak area.
- Slow fading over weeks or months.
- No blisters once the outbreak has healed.
- New pain, tingling, or blisters may mean a new outbreak.
Causes and risk factors
- Past HSV 1 skin infection at the same spot.
- Inflammation from blisters, crusting, or irritation.
- Scratching or picking during healing.
- Sun exposure on healing skin.
- Darker skin tones, which can show stronger pigment shifts.
- Repeated outbreaks in the same area.
How it's diagnosed
An HSV 1 IgG blood test checks for antibodies to herpes simplex virus 1. Antibodies are proteins your immune system makes after exposure.
A positive result can support past HSV 1 infection when pigment changes followed sores in the same area. It does not prove an active outbreak.
Treatment options
Management often starts with sun protection, gentle skin care, and time. A clinician may discuss creams, procedures, or antiviral treatment if outbreaks keep returning.
Almost done
Check your inbox and confirm your email. We will send next steps for Post-Herpetic Hypopigmentation or Hyperpigmentation testing and monitoring.
Get testing next steps for Post-Herpetic Hypopigmentation or Hyperpigmentation
We can help you check your HSV 1 result and manage skin changes.
Frequently asked questions
Inflammation can disturb pigment cells while the skin repairs itself. The healed area may look lighter or darker than nearby skin.
An HSV 1 IgG test can show past exposure to HSV 1. When marks followed sores in the same spot, it can support the likely cause.
A positive result means your immune system has seen HSV 1 before. It does not prove you have an active outbreak today.
A negative result means antibodies were not found. Early infection may not show right away, so timing matters.
HSV 1 IgG is usually reported as negative, equivocal, or positive. Your clinician can explain what your lab result means for you.
Retesting may help if exposure was recent or the first result was unclear. Ask a clinician about the best timing.
Many marks fade slowly over time. Fading can take months, and some areas need help from a skin specialist.
Ask for care if you get new blisters, pain, spreading redness, or eye symptoms. Also ask if pigment changes grow quickly.