There is a growth on my bottom lip that I've had for over a month now. I'm not sure if it's a cold sore or not. I heard cold sores last 2 weeks max but this one has been here for 5 weeks. I have been picking at it quite often and there was a scab forming on it until it came off when i showered. I have no feeling on the blister and when I poked it with a needle it started to bleed for a long time and the blister's size did not reduce. I think it has gotten bigger than before. Is this a cold sore or something else?
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