[Sensitive skin and rosacea: nosologic framework].

Flushing due to rosacea may be confused with sensitive skin because it is characterized by slightly acute reactions to varied factors with the perception of abnormal sensations and often common triggering factors. Nevertheless, these are clearly two different phenomena. On the one hand, rosacea is a vascular disease, with progressive worsening and eruptions set off by systemic factors, with a facial and/or ocular topography that respond to specific treatments. On the other hand, sensitive skin corresponds to an epidermal, cosmetic problem, with variable progression, whose eruptions are instead set off by contact factors and have a ubiquitous topography. Eruptions are improved by specific cosmetics and usually worsened by rosacea treatments.