Toddler rash doesn’t come out in every baby. Early childhood emergency rash is a viral infection of acute fever and rash disease, mainly due to the infection of human herpes virus type 6 virus, most babies may have early childhood emergency rash once around 6-18 months, some babies may be later in the age of two years old or so early childhood emergency rash, but not every baby will have early childhood emergency rash. The toddler emergency rash itself is just a viral infection, usually caused by a baby’s low resistance and contact with the secretions of a virus-infected person, and is somewhat contagious and self-limiting at the same time. Not all babies are necessarily infected with this virus, and they do not necessarily develop the disease after infection, so not every baby will develop toddler emergency rash.