Saline does not get rid of pimples. Saline is a sodium chloride solution. Washing your face with saline has an anti-inflammatory and antiseptic effect, which can reduce the chance of acne infection, but it does not directly eliminate the purpose of closed mouth acne. Saline has a cleansing and sterilizing effect, and hospitals often use saline to flush wounds to reduce local irritation. In daily life, physiological saline ice can be used to relieve the face of sunburned skin redness, burning and other situations, because the ice can make capillary constriction, to maintain the effect of stability. But saline does not have the effect of getting rid of closed mouth acne. Closed mouth pimples are mainly due to abnormal keratinization of hair follicle cells, excessive oil secretion and other factors that lead to the blockage of hair follicles, which cannot be discharged from the surface of the skin in a timely manner and form whitehead pimples. In general, the following methods are often used to deal with closed mouth pimples: 1. topical medications: Adapalene gel or vitamin A acid ointment can be applied as prescribed by the doctor to soften the hair follicles blocked by keratinization and promote the discharge of sebum and other substances, which can also play an effective inhibitory effect on sebum secretion, thereby reducing closed mouth pimples; 2. medical means: common fruit acid peeling, laser treatment, photodynamic therapy, and acne removal This method should not be used at home or in non-professional beauty studios to avoid skin infections and, in serious cases, intracranial infections caused by squeezing the facial triangle. In addition, you should also pay attention to good habits in daily life to avoid serious closed mouth pimples, such as removing makeup before bed, regular exfoliation, regular use of cleansing clay masks, use of hydrating and moisturizing skin care products, good sleeping habits and eating habits.