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What Causes Black Scab After Treating Brown Blister On Face?

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Posted on Wed, 12 Aug 2015
Question: I had a brown spot on my face treated with liquid nitrogen to remove a brown spot a week ago. It blistered, the blister broke and now I have a black scab. I am a 68 year old Caucasian woman with fair skin. I have not put anything on it. Should I? Will it scar?
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Answered by Dr. Dr. Kakkar (19 minutes later)
Brief Answer:
Use a topical antibacterial i.e 2% mupirocin ointment

Detailed Answer:
Hello. Thank you for writing to us

I have taken note of your query and I have understood it.

Blistering and scabing are expected after treatment with liquid nitrogen.
You may apply a topical antibacterial ointment i.e 2% mupirocin ointment, twice daily, till the scab falls off. Keeping it moist with mupirocin ointment would aid in faster re-epithelialization as well as prevent any chances of bacterial infection.
It should not scar though there may be transient pigmentary changes like hypopigmentation after the scab falls off.

Regards
Note: Hope the answers resolves your concerns, however for further guidance of skin related queries consult our Dermatologist.Click here to book a consultation

Above answer was peer-reviewed by : Dr. Neel Kudchadkar
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Answered by
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Dr. Dr. Kakkar

Dermatologist

Practicing since :2002

Answered : 9612 Questions

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What Causes Black Scab After Treating Brown Blister On Face?

Brief Answer: Use a topical antibacterial i.e 2% mupirocin ointment Detailed Answer: Hello. Thank you for writing to us I have taken note of your query and I have understood it. Blistering and scabing are expected after treatment with liquid nitrogen. You may apply a topical antibacterial ointment i.e 2% mupirocin ointment, twice daily, till the scab falls off. Keeping it moist with mupirocin ointment would aid in faster re-epithelialization as well as prevent any chances of bacterial infection. It should not scar though there may be transient pigmentary changes like hypopigmentation after the scab falls off. Regards