Dye your hair white, watch out for disaster

To dye your hair at home beautifully and safely, you should choose dyes of big, reputable brands. In particular, single-phase dyes should be used.
Irritation of the whole body due to standing shower and then rinsing hair

The suffering called gray hair is not only for women. Recently, Doctor – Doctor Le Thai Van Thanh, Head of Dermatology – Aesthetic Skin Department, University of Medicine and Pharmacy Hospital, Ho Chi Minh City, has just received a case related to hair dye. Patient is male, name P.D.T. (56 years old, living in Tan Binh district, HCMC. Mr. T. went to the doctor because his whole body was covered with urticarial papules, itchy and uncomfortable. At first, the patient did not think it was due to the hair dye. He worried that maybe he had liver disease that caused the skin rash. To dye your hair safely at home, choose a single-phase dye and avoid getting the dye in your eyes After examining, the doctor found that Mr. T.’s hair appeared to be freshly dyed; Outlining the hair for examination, the doctor noted that the patient’s scalp was inflamed. When the doctor asked, it was true that the patient dyed her hair at home three days ago. This is also the first time Mr. T. dyes his hair at home because he is afraid that going to the salon may be at risk of infection. This is also the cause of the patient’s overall skin irritation. According to Dr. Thanh, at the salon, when dyeing our hair, we will lie on the bed to wash our hair, if irritation occurs, it will only be in the scalp area. And Mr. T., after applying dye to his hair, when rinsing his hair, the patient combined a shower with a standing shower. Therefore, the hair dye has followed the water to the body, thereby causing skin irritation on a large scale. Scalp blisters, oozing fluid Not only Doctor Van Thanh, specialist doctor II Le Vi Anh, Department of Dermatology – Aesthetics, University Hospital of Medicine and Pharmacy, also recorded male patients with NVD. (50 years old, living in Binh Tan district, Ho Chi Minh City) suffered from irritant dermatitis after dyeing her hair at home. Mr. D. came to the doctor with a condition that not only the scalp but also the dyed parts such as the neck and nape were itchy. Due to the patient scratching, this area of ​​the skin is ulcerated, showing signs of festering, bacterial superinfection. A few days ago, another case had to go to the doctor due to irritant dermatitis with hair dye. The patient is Ms. THY (39 years old, living in Thu Duc city). Ms. Y. has gray hair early, every month she has to go to a hair salon to dye her hair gray. Since the situation of the COVID-19 epidemic became complicated, she did not dare to go to the hairdresser anymore. Although limited to public places, she still has to go to work and interact with colleagues every day. Her hair with white hairline makes her lose confidence when interacting with others. To overcome that situation, Ms. Y bought home dye to treat gray hair by herself. According to the instructions for use, she mixed the medicine and applied it to the hairline. After a while of smearing her face and towel, she also completed the process of dyeing her hair. After dyeing her hair, the part that needs to be black is not black, but the hair dyed in fashion has been blackened with drugs. About two days later, her scalp was covered with blisters and fluid that stuck to her hair. Signs of scalp irritation not only do not go away, but the hair roots also have pus. Irritation to hair dye is usually slow The mechanism of hair dye at the salon is usually divided into three phases: oxidizing the pigment on the hair fiber, making the hair fibrous and porous, and incubating the color so that the color particles get into the hair to make the hair colored. Outside the salon, the hair dyeing process is more complicated, so the hair will also last longer. At home, the drugs people buy to dye themselves are usually simpler, the chemicals are mixed together once (collected into one phase), so the color is not as stable and the concentration of chemicals is also less than in the store. Whether you are dyeing single phase or three phase, if the body is sensitive, the risk of an allergic reaction is still the same. However, for contact dermatitis, the allergy will be non-sensitizing, immediate and severe like anaphylaxis. Patients’ reactions to hair dye usually appear slowly (about 2-3 days after dyeing). Then, the symptoms began to appear from mild to severe depending on the case. The patient began to see the scalp blistering, blistering; More seriously, the area of ​​the skin exposed to the dye will be slippery, ulcerated, pus-filled, and infected. At this time, if not treated promptly, the superinfection will worsen, even progressing to sepsis. Some patients, after being diagnosed with irritant dermatitis with hair dye, wondered: “Why did I dye this dye last time, but there was no abnormality but only the second or third time?”. Doctor Van Thanh explained that, for the first time, the body did not clearly recognize the “foreign substance”, so there was only a slight reaction or no strange signs. However, the next times, because the body’s protective barrier has prepared a full “weapon” to “fight” with the foreign substance, the reactions are more sensitive and pronounced. How to dye your own hair safely? To dye your hair at home beautifully and safely, you should choose dyes of big, reputable brands. In particular, it is recommended to use single-phase dyes (although this drug is not as colorfast as the three-phase type, but the chemical concentration is lower, unfortunately causing irritation or incidents is also less influential). Dyeing hair is beautiful or not depends on the skillful skills of each person, when applying the medicine, it is all over the hair layers or not. When dyeing your hair, you should avoid letting the dye come into contact with your eyes (which can damage the cornea). When discharging the dye, you should keep your head down to avoid the dye flowing all over the body. It is very difficult for patients with irritant dermatitis after dyeing their hair at home to stop dyeing their hair, because graying hair will make them lose confidence, seriously affecting communication, social relationships and relationships. Work. According to Dr. Van Thanh, those who are sensitive to hair dye, if they have chosen a drug that does not irritate the scalp, they should remember and use it, do not change to a new drug. Changing hair dye causes the scalp to try to adapt once more. After dyeing your hair, if you see any itchy rash on any part of your body, especially when these signs tend to increase, you need to see a dermatologist for intervention. timely handling. According to the Women in Ho Chi Minh City