Dermatitis is one of the most common skin diseases, and seborrheic dermatitis is not new to us. The incidence of this disease is very high, the disease is prone to recurrence, not pay attention to treatment will also lead to some other diseases. The actual fact that there are many causes of seborrheic dermatitis in your life, it is important for patients to strengthen prevention in order to not easily trigger the disease. So, how is seborrheic dermatitis caused? The causes of seborrheic dermatitis: 1, the diet is too fatty and greasy: can cause seborrheic dermatitis, such as eating too much sugar, fat, drinking alcohol, over-eating spicy and greasy food, resulting in endocrine dysfunction, digestive malfunction. 2, acne was not treated in a timely manner: adolescent acne vulgaris or adult acne (toxic acne) is not treated in a timely manner, or improperly, can cause seborrheic dermatitis. 3, improper care, abuse of skin care products: this will harm the skin’s own water-oil balance function, so that the skin water-oil metabolism disorder, causing seborrheic dermatitis. 5, gonadal secretion disorder: seborrheic dermatitis and gonadal secretion disorder, as a result of androgen hypersecretion. 6, other factors: such as metabolic disorders, genetic factors, vitamin B deficiency and physical and chemical stimulation, often scratching or alkaline detergents can aggravate the onset of seborrheic dermatitis. Mental tension, overexertion, bacterial infection. Seborrheic dermatitis is prone to recurring attacks, so the method of treatment and prevention is key: 1. Topical treatment: Generally seborrheic dermatitis appears on the face, so it is recommended to use plant-based will not irritate the skin. The first choice is the Chinese medicine preparation Lan Xue Fulin Skin Lipid Ping, the main effect to anti-inflammatory, anti-lipid, anti-itch as the main effect, no side effects, will not stimulate the skin, can be used with confidence. 2, internal treatment: when the itching is intense, antihistamines (such as loratadine, keratan, cetirizine) can be used; can be combined with the wind and dampness diarrhea of Chinese medicine (such as dermin elimination capsule or moistening and anti-itch capsule). Warm tip: please combine the specific medication with clinical, by the doctor’s face to face guidance shall prevail. 3.Avoid sunlight, heat, spicy, stimulation (raw onion, raw garlic, leek, garlic mushroom, onion), hot diet (beef and mutton, pork head, chicken skin, chicken claw, seafood), staying up late, fire, agitation. 4, if the skin stratum corneum thin, often repeated, it is recommended that cleansing milk products, skin care products are first do not use, wash with warm water every morning and evening, apply directly, feel dry face, then you can apply a small amount of baby moisturizer to moisturize the skin, there will be no irritation. 5, should maintain a healthy lifestyle, ensure adequate sleep; relieve stress, adjust emotions, maintain a calm, happy state of mind; limit the intake of fried foods, sweet and fatty foods, dairy products, avoid alcohol and spicy stimulating food, eat more fruits and vegetables, a balanced diet; avoid all kinds of mechanical stimulation and friction, less use of alkaline soap. Can not stay up late on a regular basis.