Seborrheic dermatitis causing redness of the scalp can be improved through general treatment, medication and other ways. 1. General treatment: If seborrheic dermatitis leads to redness of the scalp, the patient should improve the daily routine, such as regular work and rest, sleep, etc.; the patient also needs to eat a reasonable diet, avoid drinking alcohol, spicy and stimulating food during the period. 2. medication: patients should also with external sulfur, selenium sulfide, mometasone furoate cream and other drugs, can be anti-inflammatory and anti-itch. Acute stage can be oral hormone such as prednisone treatment, plus vitamin B6 auxiliary treatment. Drugs need to be used in accordance with medical advice. There are many ways to improve the redness of the scalp caused by seborrheic dermatitis, and it is recommended that patients go to regular hospitals and cooperate with doctors for standardized treatment.