Rosacea is a chronic skin disorder of the face. Initially erythema and telangiectasia develop, followed at a later stage by papules and papulopustules. Females between 30 and 50 years of age are most affected. Pathogenesis is not clearly understood. Finally rhinophyma and persistent lymphoedema can develop. It can be difficult to distinguish acne vulgaris, seborrheic eczema, perioral dermatitis and lupus erythematosus from rosacea. Treatment of first choice consists of topically or systemically applied antibiotics. More severe cases can be treated with isotretinoin. Erythema and telangiectasia respond well to treatment with vascular lasers.