▲? The picture comes from the internet.
Is that really the case?
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Let's first look at the causes of foot odor.
From 65438 to 0990, scholars such as F. KANDA and E.YAGI did a lot of research on foot odor with a serious attitude of being idle anyway. They first selected some volunteers, some with smelly feet and some with smelly feet; Then, the volunteers' socks were extracted with ether; Subsequently, the components of the extract were analyzed by gas chromatography/mass spectrometry.
▲? Gas chromatography-mass spectrometer, this thing is always expensive. Image source: wikipedia.org
The results showed that compared with volunteers without foot odor, volunteers with foot odor had more bacterial decomposition products on their socks, and isovaleric acid, a pungent compound, was unique to the latter. [ 1]
In other words, excessive sweating, airtight shoes and long-term exposure to humid environment all give bacteria opportunities to multiply. Bacteria decompose the lipid on the foot surface, exfoliated dander, etc. It will produce a stench that shocks the soul. This is also the most common cause of foot odor.
For this kind of foot odor, the treatment method is also very simple. As long as you change your shoes and socks frequently, don't give bacteria a chance to reproduce, and then wash your feet on time to further eliminate lipids, dander and bacteria, the odor will naturally disappear. For this kind of foot odor, vinegar may have a certain effect, but the effect is not as good as disinfectant, and the price is not as good as boiled water. There is no need to try it.
It is worth mentioning that F. KANDA and E.YAGI won the Ig Nobel Prize in Medicine in 1992 for this research, which shows that foot odor is also a world problem?
What is the second cause of smelly feet? Athlete's foot? .
? Athlete's foot? The scientific name tinea pedis is mainly caused by fungi. According to the different clinical characteristics, tinea pedis can be divided into three types: blister type and scale type, which usually occur between toes and feet. At first, it was a blister the size of a needle tip, and then the blister fused to form a blister with obvious itching; Heel hyperkeratosis, dry skin, obvious thickening of cuticle, easy to chapped or even bleeding in winter, generally no itching; The third type is erosion, which is prone to toe joints, just like soaking in water for too long. The skin is white, the surface is soft, easy to fall off, revealing a super red rotten surface, with obvious itching, which can produce odor when secondary bacterial infection occurs.
▲? What are the three kinds of beriberi? Image source: dermatology and venereology
For patients with foot odor, it is most important to get rid of the root cause. Because beriberi is caused by fungal infection, as long as the antifungal drugs are used in time and in sufficient quantity, the symptoms will naturally be alleviated and the disease will soon be cured. Besides,? Athlete's foot? It is easy to get infected and relapse. In addition to insisting on medication, shoes, socks and towels. Should be sterilized.
Does vinegar affect beriberi?
It should be said that there is still a little bit.
Domestic scholars have studied the antibacterial effects of garlic extract, garlic vinegar extract and vinegar. The results showed that they all had certain bacteriostatic effects, and garlic extract had the strongest bacteriostatic effect, followed by garlic vinegar extract, and vinegar had the least effect on fungi. [2]
▲? Inhibitory effects of three substances on fungi [2]
Although China has traditional medicine? Does vinegar treat beriberi? In fact, although vinegar is used as the ingredient, supplemented by traditional Chinese medicine with bactericidal effect. On the one hand, vinegar is a solvent, on the other hand, it softens keratin, promotes the penetration and absorption of liquid medicine, and enhances the curative effect. [3] Although these prescriptions have certain curative effects, their compatibility is complicated, and the prescriptions used by each doctor are different. The results fluctuated greatly. Some studies show that traditional Chinese medicine is more effective than modern medicine, and some studies show that there is no significant difference in curative effect between the two. [5]
To be cautious, beriberi is better to go to a regular hospital for treatment.
Truth: vinegar has a certain effect on treating foot odor, but the effect is general, and the effect varies from person to person, which requires specific analysis of specific problems.
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refer to
Wang Xiaoming, et al. Chemical composition analysis of foot odor [J]. Beijing: Science Press, 2002. British Journal of Dermatology, 1990, 122 (6): 77 1? 776.
2 Yang, Wei Hong, et al. Study on the bacteriostasis of garlic extract and vinegar [J]. Food Science, 2008,29 (1): 69? 73.
3. Fang and Fan Bin. Research progress in external treatment of tinea pedis with traditional Chinese medicine [J]. China Journal of Mycology, 20 15, 1.20.
4 Zhou Deying, Chen Yaru. 60 cases of keratotic tinea of hands and feet treated with vinegar-soaked prescription [J]. journal of traditional chinese medicine, Yunnan, 1989, 10(3): 34? 35.
5 Zhang Lian. Clinical study on the treatment of keratotic tinea of hands and feet with vinegar bubble prescription [D]. Beijing University of Chinese Medicine, 20 14.
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Author: Zhao Yanchang