What Causes Dandruff?

Dandruff is keratinocytes that come off the scalp. Under normal circumstances, keratinocytes shed very little, very slowly, and will not be seen clearly. However, under certain stimuli, immature keratinocytes are produced in large numbers and clumped off, forming a "snowflake" phenomenon, also known as dandruff [2].

Dandruff

First, eat too much greasy food, do not exercise regularly, the gastrointestinal function of reducing fat degradation, resulting in excessive secretion of scalp oil, leftover oil is not clean when washing ^[1]

1. Avoid fried, greasy, spicy, alcohol, and caffeine foods. These foods can stimulate the formation of scalp oil and scalp.

2. Usually take more alkaline foods, such as milk, vegetables, fruits, seaweed, etc., avoid eating too much acidic foods, fried foods and sweets. Also avoid spicy and irritating foods such as peppers, mustard, raw onions, raw garlic, wine, coffee and sugar.

3. Wash your hair with warm water. Overheating water will stimulate the scalp oil secretion, making the head oil more; over-freezing the water temperature will shrink the pores, and the dirt in the hair cannot be washed away. It should be washed with warm water at about 20 ° C.

4. Should develop the habit of frequent shampooing. Do not pour shampoo directly on your head. Because the non-foaming shampoo can cause irritation to the scalp, you should pour it in your hands and rub it on your hair.

5. Do not comb your hair with your nails. Gently massaging the scalp with your fingertips will not only increase blood circulation but also reduce dandruff formation.

6. Change to another shampoo on the 7th. The cleansing of the shampoo is only temporary for the hair. After seven days, the scalp will adapt and lose the cleaning effect. It is advisable to buy two shampoos and use them alternately.

7. Chemical products such as hair spray can damage hair and irritate the skin, and can also increase the formation of dandruff. Also try to avoid dyeing your hair. Because hair dyes can damage hair shafts, cause hair breakage, and stimulate scalp cells, resulting in increased dandruff.

8. Combing your hair 100 times in the morning and evening will help improve blood circulation, reduce hair loss and reduce dandruff.

9. Eat some foods with high zinc content. Such as: brown rice, oysters, sheep, cows, pigs, red rice, chicken, spaghetti, milk, eggs.

Doctor analysis, suffering from adipose dermatitis, dry dermatitis, too much physical and mental stress, scalp spores on the scalp surface or hair follicles that secrete sebum, or suffer from skin diseases such as psoriasis (psoriasis), tinea capitis, or People with certain medical conditions also suffer from dandruff. From a seasonal perspective, the dandruff problem of dry dermatitis is more common in winter, the dandruff problem caused by excessive sebum and poor skin cleanliness is more common in summer, and the fatality is more common when the season changes. Dandruff caused by atopic dermatitis.

From the perspective of symptoms, doctors point out that patients with seborrheic dermatitis will have scalp oil, dandruff, and redness, and obvious rashes and peeling on the face, eyebrows, and law lines; dry dermatitis will dry the scalp No oil, dandruff and snow, and the skin on the body is dry; if it is a dandruff problem that belongs to the disease category, such as psoriasis patients, in addition to dandruff, there will be thick rashes on the body and nails will change; In addition to dandruff, there will be small pustules on the scalp, and there will be obvious hair loss problems. Bacillus dandruff cannot be judged by the naked eye, but usually the skin epidermis is accompanied by inflammation.

Error 1: Wash your hair every day ^[2]

To solve the problem of dandruff, the doctor said, first find out the main cause of dandruff, usually in addition to the topical application of the lotion, but also supplemented with shampoo products with skin medical treatment effects to extend the treatment effect; generally can be divided For the following three categories:

1. Antibacterial shampoo containing anti-dandruff spore components such as Ketoconazole, Zinc Pyrithone, selenium, and ciclopirox olamine, which is mainly used to reduce the pathogenic dandruff spores; because it does not contain steroids and antibiotics, you do not need to worry about it Are there too many side effects.

2. A special shampoo containing salicylic acid or fruit acid. Its main function is to dissolve the cutin so that the dandruff that has formed can fall off smoothly. As the concentration of shampoo is generally not high, there will not be too many side effects.

3. Shampoo containing anti-inflammatory and anti-itch agents such as Poly tar, which is used to slow the local scalp inflammation reaction.

In use, the doctor suggested that the best way is to use the three rotations, the effect is the best; and when using it, massage the scalp with your fingers for about 3 ~ 5 minutes before rinsing, do not wash off too early, the effect is good.

As for patients with abnormal scalp keratosis due to physical and mental stress, there is no suitable medicine to improve dandruff. Such patients are prone to dandruff as long as they are stressed or tired, and need to relieve stress and rest To improve; while others related to medical diseases, we need to improve by removing the root cause of the disease.