How do you get rid of a blood blister from a piercing?

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How do you get rid of a blood blister from a piercing?Pustule, or piercing blister It is a type of localized infection. It is usually safe to treat these infections at home with warm compresses and frequent cleansing. Sometimes, the blisters go away and return. See a doctor if the blister keeps coming back, if it is very painful, or if multiple blisters appear.