Rosacea usually develops in mature seborrheic skin that is showing vasomotor disturbances. Initially the changes take the form of erythema, which over time is fixed. There are numerous dilated, purulent lesions and lumps. In the course of the disease, inflammatory changes within the eyelids and conjunctiva and cornea occur, resulting in tearing, burning and dryness of the eye. In advanced stages, hypertrophy of the sebaceous glands and lymphatic edema occur. The deterioration of the state is often influenced by changes in temperature, strong sun exposure, alcohol and spicy foods. A typical symptom is flushing.