There are many reasons why newborns have red spots on their heads, mainly due to red heat rash and eczema.1. Red heat rash: mainly due to the high temperature of the newborn’s body surface, a large amount of sweat is not easy to evaporate, resulting in narrowing or blockage of the sweat ducts, sweat stagnation in the sweat ducts, increased pressure, rupture of the sweat ducts, sweat extravasation around the tissue caused by the disease. At this time should keep the newborn’s skin dry and hygienic, to ensure that the room temperature, humidity, air circulation, especially in the summer, hot weather, you can diligently wash and wipe the body, and then use prickly heat powder in the skin sweat-prone area, to keep the skin fresh; 2, eczema: eczema is caused by allergies, reflected in the skin as red spots and accompanied by gastrointestinal symptoms. The child will produce a more intense itching, thus restlessness, crying and more. It is important to maintain skin hygiene, avoid sweating or keeping dry at all times, and keep the room at a constant temperature. If you have eczema, you can apply ointment as prescribed by your doctor. If the rash does not improve after using common ointment or if the area of the rash becomes larger, it is recommended to visit the hospital. In addition, breastfeeding mothers need to eat a light diet.