A lot of black spots suddenly appeared on my body

Some people have poor resistance and are prone to allergies. Once they eat irritating food or food they have never come into contact with before, or change to a new environment, they will have allergic reactions. There are many types of allergic reactions. Some people will develop pimples on their bodies, some people will feel itchy all over, and some people will suddenly develop many black spots on their bodies. So what is going on with the sudden appearance of black spots?

This is melanin deposition, which is caused by excessive melanin production by melanocytes and excessive deposition in epidermal keratinocytes. Pigmentation not only affects appearance, but also poses certain potential hazards to the body.

1. Causes of melanin deposition:

Black skin pigmentation is usually formed after being stimulated by sunlight, ultraviolet radiation, cosmetics, drugs and other substances. Part of it falls off with the stratum corneum, while part of it is deposited in the bottom layer and discharged from the body through blood circulation. Once the above functions are out of balance, pigmentation will be formed. The human skin is constantly metabolizing various wastes every day. If the endocrine circulation in the body is not smooth, pigmentation will occur.

a. Internal factors:

1. Endocrine disorder. Often, when customers have serious facial problems such as pigmentation and acne, beauticians often treat them as endocrine disorder.

2. Heredity. Generally, facial pigmentation that appears after the age of 18 may be related to heredity.

b. External factors:

1. Due to environmental and air pollution, holes in the ozone layer produce a large amount of ultraviolet rays that directly radiate our skin. In order to prevent skin cells from being oxidized, the human body secretes a large amount of melanin to protect them, which leads to pigmentation and the formation of dark spots.

2. Food. The nutrition of our skin mainly comes from the blood, and whether the nutrients in the blood are sufficient and suitable for the survival of cells depends on the quality of food. Alkaline substances can neutralize the acidity of meat and grain foods, keep the body fluids in an alkaline environment and dissolve toxic substances precipitated in the cells, so that they can be excreted with urine, and can accelerate metabolism. Alkaline foods include: fresh fruits and vegetables, raw garlic, tea, soy products, pig blood, milk, black fungus, kelp, etc.

3. The cleanliness of cosmetics and skin. Since cosmetics contain chemicals and heavy metals such as lead, they can easily cause pigmentation if not cleaned properly.

4. Photosensitivity. Prolonged exposure to sunlight and strong radiation light sources will accelerate the synthesis of melanin, causing the skin color to darken.

5. Special physiological and emotional factors: During menstruation and pregnancy (especially during pregnancy), women's corpus luteum secretions will increase due to the stimulation of progesterone, thus causing pigmentation or worsening of pigmentation.

2. Treatment of melanin deposition:

1. Laser treatment is the best treatment for melanin deposition. The principle of laser treatment for melanin deposition is: the light emitted by the laser after irradiating the skin will be absorbed by the melanin particles. At this time, the laser will produce a high energy to break up the melanin particles, and then the pigment debris will be discharged from the body with various circulations of the human body, thereby achieving the purpose of removal. For dark spots with small areas, you can first use melanotherapy (i.e. drug spot therapy or laser spot therapy and then use some drugs that can control the formation of melanin and accelerate cell metabolism).

2. Use non-irritating skin care products for regular maintenance.

3. Pay attention to your diet. Eat more red things, except meat, such as red beans and tomatoes. Then you can buy some exfoliating cleansers and wash with warm water every day. You will see results in about two or three weeks.