Although we should avoid popping a pimple, but still unknowingly, pimple (acne) can break out. In such a situation, most of the people do not know what to do after the pimple has erupted? Actually, after a pimple burst, there may be a wound, the problem of pigmentation may increase or there may also be a skin infection. Due to which the redness on the face can increase. In this case, you will need to see a dermatologist.