Rosacea redness may sometimes appear as a facial skin rash. The question arises if this is a true rosacea flush or the direct result of the body’s immune system response that has been triggered by an allergen. An allergen triggered rash can caused by both an internal or external allergen. The triggering mechanism results from the immune system reacting or becoming hypersensitive to the allergen. At any given time the body’s immune system response is influenced by a variety of other considerations and as such the skin response can run the gamut from a minor flush or rash to a severe flushing response that may include itchy, swelling or inflammation from the same allergen.

A rosacea rash can result from inflammation of the skin due to direct topical contact with an irritating substance or allergen resulting in an immune system response. The allergens can include but may not be […]