Many diseases can lead to pimples on the face, the following conditions are common: 1, if the baby for 3-4 months of age, most of the eczema or seborrheic dermatitis, can be accompanied by itchiness, with the rise in ambient temperature is easy to aggravate the baby’s general condition is good; 2, viral dermatitis, to spring and fall common, such as measles, chickenpox, toddler rash, etc., in addition to the face of the skin rashes, torso cadres and limbs will be scattered with a Red rash or herpes, accompanied by fever, poor mental status, etc.; 3, if the age of puberty, children may be acne, eat less fatty foods, moderate exercise; 4, drug dermatitis, most of the drugs taken by the allergy caused by the baby often have the symptoms of the original infection, history of medication and so on.