[Acne] URGENT - Hydrocolloid bandage left HUGE red mark that won't go away and I'm on my way to NYC for vacation :(

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http://imgur.com/51J6VX7This has never happened to me ever and I use hydrocolloid bandages all the time. Does anyone has a clue what this is and how I can treat it? I'm driving to NYC on vacation and I really hope this doesn't ruin my whole trip. Just my luck...
Girls Blog 2015
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