There's no specific test for rosacea. Instead, doctors rely on the history of your symptoms and a physical examination of your skin. In some cases, your doctor may have you undergo tests to rule out other conditions, such as other forms of acne, psoriasis, eczema or lupus. These conditions can sometimes cause signs and symptoms similar to those of rosacea.
If your eyes are involved, your doctor may refer you to an eye specialist (ophthalmologist).