The causes of acne on the face of newborns include the following two conditions: 1. Neonatal acne. Soon after birth, the hormone levels inherited from the mother to the newborn have not yet completely subsided, and the newborn will have acne on the face. Parents do not need special treatment, and as they get older, the symptoms will slowly get better. Antibiotic ointment can be applied when acne has a pus head, but the others do not need to be treated. 2. Damp-heat constitution leads to acne on the face, sticky stools, red tongue and yellowish tongue coating if it belongs to a damp-heat constitution, which requires the application of Fu Ling and Yin Chen boiled water to drink, which has the effect of clearing heat and transforming dampness.