Your healthcare provider will do a complete physical exam and ask about your medical history, specifically about whether you have ever had chickenpox.
Your healthcare provider will likely know right away that it is shingles based on the unique rash. The rash usually appears one area on one side of the body or face. It appears as red spots, small fluid- or pus-filled vesicles, or scabs.
The healthcare provider may also take skin scrapings for testing.