Alopecia areata refers to a large amount of unexplained hair loss in a short period of time, forming hair loss patches with neat boundaries and varying sizes. Patients often have no conscious symptoms, and some patients may have symptoms such as dizziness and itching. During examination, it was found that a small number of patients could see redness and swelling in the hair loss area. The appearance of this disease not only affects aesthetics, but also indicates that there are certain problems with the body. But as long as the cause is identified and treated accordingly, this disease is not difficult to cure. Alopecia areata, formerly known as "ghost shaving", falls under the category of "oil wind" in traditional Chinese medicine. As stated in "Authentic Surgery," "Oil wind is caused by blood deficiency and cannot nourish the skin with qi. Therefore, the hair roots are empty and fall off into patches, making the skin shiny and itchy like insects. All of this is due to the attack of wind and heat on the deficiency
Dialectical application:
（1） Blood deficiency and wind dryness
The hair loss time is relatively short, with hair falling out in patches, accompanied by itching, occasional dizziness and insomnia, pale red tongue, thin coating, and weak pulse.
1. Preferred herbal medicine
Shen Ying Yang Zhen Dan, 6-9g each time, twice a day, taken with warm water.
2. Alternative drugs
(1) Sheng Fa Wan, take 1 pill each time, 2-3 times a day, and take with warm water.
(2) Yangxue Shengfa Capsules, 4 capsules each time, taken twice a day, should be taken continuously for 2-3 months.
（2） Liver and kidney insufficiency
The course of the disease is relatively long, often with complete or generalized baldness, accompanied by dizziness and vertigo, insomnia and tinnitus, pale tongue coating peeling, and thin veins.
1. Preferred drug
(1) Bantu Pill, 1 pill each time, taken twice a day.
(2) Gu Shen Sheng Fa Wan, 2.5 grams each time, 3 times a day.
2. Alternative drugs
(1) Qibao Meiran Pill, 1 pill each time, 2 times a day, taken with light salt soup or warm water.
(2) Qibao Meiran Granules, 8 grams each time, twice a day, take with boiling water.
(3) Sheng Er Fa Syrup, 30-40 milliliters each time, taken 3 times a day.
(4) Tianma Shouwu tablets, 6 tablets each time, taken 3 times a day.
(5) Fitness Hair Growth Pill, 1 pill each time, taken twice a day.
In addition, topical medications such as Zhangguang brand 101 hair regeneration essence, 1101A hair regeneration essence, and 101-B hair anti stripping spirit can be used.