A sore bump what is it?

I have a sore bump behind my ear kinda in my spike. It's a little hard. It don't look like it's going to be a pimple. What could it be? Is in that something to make it not sore?
Answers:
it could actually be a pimple... or in other words, an in-grown pelt. You could try warm compresses.. like wet a bathe cloth with really hot water.. my mom used to just pop the damp cloth in the microwave and it just as effective save faster. If it's a pimple it will eventually bring it to a head and you can pop it.


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