To identify rashes and outbreaks on the skin, consumers can use the field guide on Parenting.com, which focuses on rashes common among children, or the guide to rashes and other skin irritations on WebMD. Common rashes include eczema, lichen planus and impetigo. Some rashes are caused by allergic reactions to external irritants.
Some rashes, such as eczema, can occur in both children and adults, according to WebMD. Most conditions eventually resolve themselves without medical intervention, but patients should visit a doctor if they cannot identify the source of the problem, states Parenting.com. This is especially true for allergic reactions, which can also cause other symptoms, such as difficulty breathing and intense swelling, according to Parenting.com.