When people say to use a lemon to reduce redness of a pimple, how do you do it?

like how do you apply it? and does it really work?When people say to use a lemon to reduce redness of a pimple, how do you do it?
can't get the idea how lemon juice can treat a pimple since pimple causes are increased sebum in the skin. Here are some treatment for pimple or acne


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