Disciplined and thorough observation is key to describing the features of a rash accurately.
Understanding and mastering each of the steps in the process is critical to making an accurate diagnosis.
The Skin Exam Process
Click each of the following steps for an interactive tutorial.
Experts put these features together as they examine the skin, hair, nails, and mucous membranes. Many common rash patterns are so characteristic that a diagnosis can be made with no history at all. In other cases, such as viral exanthems, the history of the eruption can clinch the diagnosis.