Hi, my 22 month old son has a rash-like skin reaction on his back, torso and abdominal area. I first noted it yesterday on his back, since spread posteriorly. No changes in soaps, no new food or medication given. He is allergic to pollen, dust, etc.

Rash. Rash could be due to a viral infection. There are many different viruses that can cause a rash. Followup with your child's doctor to clarify cause of the rash. Or if you have a photo of the rash you can use Health Tap Prime consult to get a diagnosis.