There are no definitive tests to confirm a diagnosis of rosacea. The diagnosis is made primarily on the basis of the symptoms exhibited. Because each of us is different, very few people will display all the symptoms of rosacea, therefore it often becomes a process of elimination. In extreme cases a skin biopsy may be done to make a correct diagnosis.
Because the symptoms of rosacea can also be symptomatic of other skin conditions, the diagnosis can be confusing for some doctors, in some instances this can lead to being prescribed treatments or medications that can often worsen your skin condition.
The most commonly related skin conditions with which rosacea is confused include acne, eczema, seborrhea dermatitis, allergies, psoriasis, even poison ivy. Understanding the symptoms of each of these conditions can help to rule them out in order to confirm the diagnosis of rosacea. Because your doctor doesn’t see you every day and is not as familiar with your skin as you are, they can easily be confused about the diagnosis.
In achieving a proper diagnosis of rosacea, you need to be involved in tracking your symptoms and noting what if any circumstances may have triggered or set off your skin reactions. Take your notes with you when you visit your doctor in order to give them the clearest picture possible of your symptoms and how your skin reacts.