What could be the cause of a red ring rash on my 9-month-old?
The rash you describe could be any of several things. These would include eczema or contact dermatitis (frequently caused by a metal object, such as a snap), although both of these disorders are usually itchy. Other possibilities would include hives or what's called "reactive erythema"the tendency for some children to get temporary red areas on the skin after minimal stimuli, like touching, rubbing, or scratching. Since the lesions continue to recur, have him evaluated by his pediatrician or a pediatric dermatologist for an examination and discussion.