Do a skin test before dyeing your hair.

In recent years, cases of skin allergy and inflammation caused by hair dyeing and perm have been high. Most of the patients are young students, some are scalp inflammation and some are neck inflammation. Experts believe that hair dye is harmful to health, so it is necessary to test the skin before dyeing hair.

A survey of women over 100 18 shows that 92% of the female citizens of 100 have dyed their hair, and nearly 60% of them have dyed their hair three times or more. However, in this huge hair dyeing group, only 10% people have done skin allergy test before dyeing their hair, and as many as 90% female hair dyeing people have never done skin allergy test before dyeing their hair.

Dermatologists say that necessary skin tests must be carried out before dyeing hair. All hair dyes contain p-phenylenediamine, which is a highly allergic chemical. Contact dermatitis can be caused by skin contact, and the specific symptoms include skin flushing, itching, burning pain, swelling, and even papules or blisters, which can last for 2-3 weeks.

Experts believe that although modern technology has improved, the content of harmful substances such as lead and mercury in some hair dyes may have decreased, but there can be no completely harmless hair dyes in the world, because hair dyes are a very complex chemical preparation, and the side effects of hair dyes can not be ignored.

What harm does dyeing hair bring?

Since ancient times, people in China have regarded black hair as beauty. Nowadays, no matter men, women and children, as long as silver silk climbs up, they will be afraid of being regarded as a sign of aging and dyeing their hair repeatedly for years.

You know, all kinds of hair dyes contain dozens of chemical components. According to the detection of 100 hair dyes by relevant departments, nearly 90% of hair dyes contain toxic chemicals such as nitrobenzene and aniline, which are easily absorbed by the skin and harmful to human body. Medical experts pointed out that long-term use of hair dye, as long as 1% is absorbed by the skin and enters the human body, will accumulate poisoning, in which chemical substances combine with some cells, DNA in the nucleus is damaged, causing cell mutation, inducing skin cancer, bladder cancer, leukemia and so on. Therefore, experts warned not to "get sick from the mouth".

Research by the American Cancer Society shows that women who use hair dyes have a 70% increased risk of lymphoma. A survey was conducted on10.3 million women who had dyed their hair, and it was found that the number of women suffering from leukemia was 3.8 times that of women who did not dye their hair. Leukemia caused by hair dye has an increasing trend, and the medical profession specially named it hair dye leukemia to remind people to pay attention.

There are also many reports in China medical journals that hair dyes cause leukemia, skin cancer and bladder cancer. Six leukemia patients (5 females, 5 males 1 case) caused by frequent hair dyeing were admitted to the First Hospital of Harbin. The hematology department of Beijing Friendship Hospital found that many middle-aged and elderly leukemia patients have a history of dyeing their hair.

Some imported hair dyes also contain lead acetate, and the lead content is 5 ~ 10 times that of household paints and pigments. After lead enters the human body, it is difficult to excrete it, causing cumulative poisoning, such as dizziness, headache, fatigue, numbness of limbs, leg cramps, abdominal pain and a series of lead poisoning symptoms, and entering the liver, kidney and brain marrow, destroying the functions of these organs, and seriously losing labor.

I advise you to enhance your awareness of self-protection, and also weigh the advantages and disadvantages of less hair dyeing and beauty, so as not to damage your health, especially for patients with allergies and blood diseases, pregnant women and lactating women, so as not to harm the next generation.

Experts warn against hair dye dermatitis.

You must have an allergy test before dyeing your hair.

Before and after the festival, the number of patients with "hair dermatitis" caused by dyeing hair before the festival surged. Experts remind that because hair dyeing products contain strong allergens, you must do an allergy test before dyeing your hair.

Dr. Zhang Litao, Director of Allergy Department of Tianjin Changzheng Hospital, introduced that hair dye dermatitis is a kind of contact dermatitis. The main symptoms are redness, itching and rash on the head, limbs and other places after dyeing hair, and even anaphylactic shock may occur in severe cases, which is life-threatening.

Many patients said they used plant hair dye and asked why they were allergic. Zhang Litao explained that although many hair dyes on the market are natural plants, in fact, they not only widely use phenylenediamine as the effective component of hair dyeing, but also contain other complex chemical components. If selected or used improperly, it will cause skin allergy, and some may also cause liver and kidney damage and even induce cancer.

In order to minimize the harm of hair dyeing, Zhang Litao suggested that consumers choose a handful of hair behind their ears for allergy test one or two days before each hair dyeing. If it is abnormal, you can choose another brand and try again. If you still have allergies, you should give up dyeing your hair. Pregnant and lactating women, sick and post-sick patients had better not dye their hair. He also reminded consumers that for imported hair dyes, they should check the health approval number and Chinese product name of imported cosmetics to avoid being fooled.

Seven Points for Attention in Safe Hair Dyeing

Ps 1: Do not use inferior hair dyeing products.

Don't covet cheap and inferior hair dyes, be careful of scalp redness and pus, be beautiful, and be responsible for your health.

Ps2: You must have a skin test before dyeing your hair.

Whether you dye your own hair or go to a hair salon, you should have a skin test. If there is redness and itching, you can't dye your hair.

Ps3: People with allergies should not use permanent hair dyes.

Permanent hair dye is easy to cause adverse reactions, such as dermatitis, eczema, rhinitis, asthma and so on. Therefore, people with allergies should use it with caution.

Ps4: Don't dye your hair if you have scratches on your scalp.

Remember not to wash your hair before dyeing it. First, the oil secreted by the scalp has a protective effect on your hair. Second, you can avoid accidental scratches when washing your hair. If there is a wound on the scalp and then comes into contact with hair dye, it is easy to cause inflammation.

Ps5: Don't dye your hair repeatedly for three months.

Hair dye contains decolorant, which is harmful to hair scales, and damaged hair scales will become fragile and easily broken. If you dye your hair repeatedly within three months, the damaged hair scales will be injured again and cannot be recovered, and your hair health will be worrying.

Ps6: Apply lotion before dyeing your hair.

Before dyeing your hair, you should apply lotion on the hairline and behind your ears to prevent the hair dye from polluting and damaging your skin.

Ps7: Don't dye your hair during pregnancy and menstrual period.

Pregnant women are not suitable for contact with chemical staining products because it is not good for the fetus. During menstruation, women's endocrine and other aspects will change. In order to prevent problems, we should also avoid dyeing our hair.

Polygonum multiflorum Thunb. blackens white hair.

■ Method 1: Oral treatment of premature gray hair.

Ingredients: Polygonum multiflorum Thunb. 100g, 2 eggs, a little brown sugar.

1. After the eggs are cooked, peel them.

2. Put Polygonum Multiflori Radix and eggs in a pot and cook for 30 minutes.

3. Add a little brown sugar and mix well to serve.

■ Method 2: Hair dyeing with traditional Chinese medicine

Ingredients: Polygonum Multiflori Radix 20g, Bletilla striata 20g, Indigo Naturalis 30g, Pine Branch 20g, Mint 10g (remember to ask the clerk to grind the medicine well).

Exercise:

1. Put two spoonfuls of black coffee in the pot (coffee without any seasoning plays a role in dyeing).

2. Put the crushed Chinese medicine into it and mix well.

3. After the medicine is boiled, add 1 teaspoon of white vinegar (fixation).

4. Dye the hair according to the usual dyeing method, and wash off the medicine after two hours.

Expert comments:

These two methods have obvious effects on different situations of white hair. Both of them give full play to the medicinal value of Polygonum multiflorum Thunb. And they are safe, non-toxic, environmentally friendly and healthy, and have multiple functions such as hair care, hair care and hair growth. Simple and economical operation, you can try it.

Taomi Shuizhiyang

■ Method 1: Taomi water+Zanthoxylum bungeanum for relieving itching.

Ingredients: pepper, rice washing water.

Exercise:

1. Prepare a small pot of boiling water, pour a proper amount of pepper into the water, cook for 3 minutes with high fire, and then turn off the fire.

2. Take a clean towel and soak it in boiled pepper water.

Twist the towel dry and scrub the itchy place with a warm towel, then it will stop itching.

Principle: Zanthoxylum bungeanum has many medicinal effects, which can strengthen the spleen and regulate qi, especially inhibit many bacteria.

■ Method 2: Taomi water+salt to relieve itching.

Ingredients: appropriate amount of rice and salt.

Exercise:

1. Wash the prepared rice and deliberately soak it in water for about 5 minutes.

2. Pour the rice washing water into the container.

3. Add a proper amount of salt to the rice washing water (add half a spoonful of salt to a bowl of rice washing water).

4. Scrub the itchy place with the prepared rice washing water, and the itching problem of the body will be solved soon. Tip: When wiping your body with Taomi water, it should last no more than 3 minutes at a time. Generally, 3-5 times will have a good effect.

Expert comments:

Zanthoxylum bungeanum has many medicinal functions besides seasoning, which can promote the endocrine function of the body and inhibit the bacteria on the skin surface. You can try both methods.