This is round angle's disease of hair, also known as lichen or keratosis of hair, commonly known as chicken skin. It is an autosomal dominant hereditary skin disease, which is caused by skin malnutrition and keratosis, and is caused by keratosis of hair follicles. Under normal circumstances, external application of vitamin A acid can obviously improve, but it is easy to relapse. The main methods are:

1, take vitamins A and E, Bozhi tablets, Siwu mixture, and apply Diwei cream and tretinoin ointment.

2. When taking a bath, the affected part should be smeared with soap or bath cream containing exfoliating ingredients, and gently brushed with a bath brush to remove the corner plugs of pores.

3. Avoid squeezing rashes frequently, because it is easy to leave small scars after the rashes are squeezed out.

4, round angle's disease is more serious in autumn and winter, and the skin is dry in winter, and round angle's disease will be aggravated, so strengthening moisturizing in autumn and winter can avoid the aggravation of symptoms. It is not advisable to take a bath too often in winter, nor to use too much alkaline bath products. After taking a bath, apply oil with skin care function to protect the skin's softness. Generally, no treatment is needed.

5. You can take some foods rich in vitamin A in your diet, such as carrots, green vegetables and fresh fruits.