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Avatar universal

Cold Sore??????

Hi,

Are cold sores always

- Bright red
- Scab and go yellow or hard scab like a cut
- always in a cluster

I got 1 big blister on my lip that ulcerated and disappeared in 48 hours. would this be a cold sore?
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Avatar universal
hello can anyone help me
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Avatar universal
Any update on this?
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Avatar universal
Sorry I have a picture of when it first came up , like a big blister then it ulcerated then became rough then cleared in 48 hours. not red or scabbed yellow or in cluster .

http://postimg.org/image/d6lix0g77/
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