Rosacea can be roughly divided into three periods: erythema period, papule-pustule period, and nasal redundancy period. The performance of each period is different, and the main manifestations are erythema, papule, pustule, and nasal redundancy in the center of the face. 1. Erythema period: erythema in the nose, cheeks, forehead and other parts of the main manifestations, can be accompanied by dendritic capillary dilatation, to the tip of the nose and the two sides of the nose is the most obvious. 2. Papule-pustule stage: papules and pustules appear on the basis of erythema, and capillary dilatation is more obvious. 3. Nasal superfluous stage: the sebaceous gland mouth is obviously enlarged, the tip of the nose is enlarged, deformed, the skin is thickened, rough, dark red or purple-red, and it gradually develops into nodular skin flap of different sizes. It should be noted that there is no obvious boundary between the stages in the actual clinic, and different stages of rosacea may exist in the same area at the same time; there may also be blurred vision, burning sensation in the eyes, foreign body sensation in the eyes, dry skin, itching and other symptoms. It is recommended that patients with rosacea should seek medical treatment in time, and under the guidance of the doctor, medication, physical therapy, life management, etc. Generally speaking, through standardized treatment, a significant improvement can be achieved; however, the disease is prone to recurrence, so it is important to adhere to the doctor’s instructions for treatment in order to alleviate the symptoms and minimize the recurrence of the disease.