Pimples generally refer to acne, and iodine can be used to rub pimples, but long-term application of iodine can cause skin irritation and is not recommended. Skin acne is usually caused by long-term bad dietary habits, poor skin cleansing, blocked hair follicles and other reasons. Iodine is a broad-spectrum antiseptic for external use. Rubbing iodine on pimples can have a localized anti-inflammatory effect, but iodine does not have the effect of getting rid of pimples. So applying iodine can be used as an adjunctive treatment. And long-term use of iodine to apply pimples will also cause irritation to the skin, causing symptoms of skin pigmentation, itching and rash. So iodine rubbing on pimples can be used occasionally, long-term is not recommended. If you want to get rid of acne completely, you can choose photodynamic therapy, red and blue light irradiation and other physical therapy, you can also apply clindamycin cream, erythromycin ointment and so on as prescribed by the doctor. If the acne is more serious, you can combine oral anti-inflammatory drugs such as minocycline, but preparation, pregnancy or breastfeeding is prohibited. In short, iodine can wipe acne, occasional use is not a problem, but it is not recommended to use often, to avoid localized skin irritation. Pimples need to go to the hospital in time, strictly follow the doctor’s instructions for treatment, do not blindly deal with their own.