Children with a lot of small particles on their face like prickly heat may be Cheilitis, eczema or herpes. 1. Cheilitis: Cheilitis is a small bump on the skin with a rounded shape, usually without pain and itching. 2. Eczema: It occurs easily in humid environments. The small particles are dark in color and accompanied by itching symptoms. 3. Herpes: herpes caused by viral infections, most of them are yellow or translucent, there will be obvious pain, itching symptoms, and a few herpes is accompanied by symptoms of erosion. If a child has a lot of small particles like prickly heat on the face, it is important to clean the skin well and avoid scratching the particles with the child’s hands to prevent bacterial infection. At the same time, the first time to take children to the hospital dermatology department to find the cause of the disease, under the guidance of a professional doctor on the cause of treatment.