The redness of the nose with large pores and blackheads may be caused by rosacea, which can be improved by general treatment, medication and physical therapy under the guidance of a doctor. 1. General treatment: patients are advised to have a regular work and rest schedule and avoid staying up late; avoid eating spicy and stimulating foods, too sweet and greasy foods; avoid using irritating skin care products; avoid sun exposure, and take sun protection measures such as umbrellas and hats when going out. 2. Medication: topical metronidazole gel, fusidic acid cream, benzoyl peroxide, tacrolimus and other medications can be used as prescribed by the doctor; when combined with papules and pustules, antibiotics such as minocycline and doxycycline can be taken orally to achieve anti-inflammatory and anti-immune effects. 3. Physical therapy: you can choose the appropriate physical therapy according to the condition, generally erythema and swelling in the acute stage can use red light, yellow light and other treatments; stabilization period can use radiofrequency therapy; erythema and capillary dilatation can be used in the treatment of intense pulsed light. It is recommended that patients with red nose and enlarged pores with blackheads seek timely medical treatment, standardize the treatment under the guidance of the doctor, and avoid private medication to avoid delaying the condition.