1. What is infantile rash? Infantile rash is a common infectious disease that mostly occurs in infants and young children between 3 months and 2 years old. The main characteristics of the disease are red spots and blisters on the skin, accompanied by cold symptoms such as fever, runny nose, and cough. Due to its easy contagion and high incidence, parents need to know the relevant knowledge in time for timely prevention and treatment. 2. Routes of transmission of infantile rash 1. Airborne transmission: When the patient sneezes or breathes, the rash