Seven-Month-Old Girl’s Sudden Rash Alarmed Her Parents, but Doctors Said It Was Viral Hives

Tehila, a 7-month-old from Jerusalem, developed a rash that spread across almost her entire body over the course of a few hours. Her mother, Mirav, said she first noticed red spots after the baby woke from a nap, initially suspecting either grass exposure or fruit she had eaten earlier. When the rash quickly worsened, the family took her to their health clinic, then to an urgent care center, and later to the emergency room.

At the clinic, a doctor gave Tehila an antihistamine treatment and advised the family to go to urgent care if the condition deteriorated. By evening, the rash was still spreading, but the baby remained alert, was breathing normally, and did not seem uncomfortable. Still worried it would get worse overnight, the parents went to urgent care, where she received a steroid injection. By the next morning the rash had almost disappeared, but it returned gradually during the day and by Wednesday morning covered nearly her whole body, prompting another trip to the emergency department.

Dr. David Rechtman, head of the pediatric emergency department at Hadassah Mount Scopus Hospital, said Tehila was diagnosed with viral urticaria, a common childhood condition. “I fully understand the parents’ alarm,” he said, adding that hospitals see children with hives almost every day because the rash looks so dramatic. He said the condition can recur for weeks, appearing in waves, and usually does not require special treatment, except antihistamine drops for itching.

Rechtman said parents often assume a rash means an allergic reaction, which is common in adults, but in children “90% of cases” are caused by viral illness. He stressed that concerning signs include restlessness, lethargy, shortness of breath, or a rash that does not fade when pressed. If the rash disappears briefly under pressure, it is less likely to be bleeding under the skin, known as petechiae, which can point to invasive bacterial infection. If the child looks well, doctors usually do not need blood or urine tests, but a pale, lethargic child with fever or breathing problems needs a broader workup.