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What is the blister on the foot?
The blister on the foot belongs to blister tinea pedis, which is characterized by small clustered blisters on the sole of the foot and obvious itching. The blister is deep and not easy to rupture, and it will dry up and desquamate after a few days. It is caused by fungal infection, also known as beriberi.

1, reason

Berberi is caused by fungal infection and foot skin injury. Berberi fungus is a kind of hygrophilic fungus, which is most suitable for the growth and reproduction of fungi between human toes. Berberi fungus has strong vitality and can survive in a dormant state for a long time in arid desert and frozen environment. It won't die at a high temperature of 120 degrees for 20 minutes. Fungi are hard to kill. Its fimbriae have adsorption and will be tightly hooked on tissues and cells. Its flagella is a motor organ, so fungi can move.

The onset of beriberi is also related to living habits. Bad hygiene habits often increase the incidence of tinea pedis. Some people do not pay attention to the cleanliness of feet and the condition of shoes and socks, which provides a good breeding ground for fungi. Some people also like to touch their toes with their hands, which damages the skin of their feet and spreads beriberi. Someone in the family suffers from beriberi. If you don't give proper treatment, you will be in close contact with others, causing contact infection. The articles used by patients with tinea pedis are often not disinfected, and healthy people are prone to infection after using them.

Symptoms of beriberi

Symptoms: More common in adults, both men and women can get sick. It is often aggravated in summer and lightened in winter, sometimes light and sometimes heavy, and the delay time is long. Medicine usually divides beriberi into three types: erosive beriberi, blister beriberi and scaly beriberi.

1. erosive type: it occurs between the third and fourth toes and between the fourth and fifth toes. When the toes are wet at first, they turn white when dipped. After it is dry and desquamated, the desquamation place is wet, flushed and muddy, or accompanied by cracks and itching, which is easy to cause secondary infection.

2, blister type: occurs at the edge of the foot and the sole of the foot. At first, there are small blisters with full wall thickness, and some can be merged into large blisters. The blister liquid is transparent and there is no blush around it. Self-conscious itching often leads to erysipelas and lymphangitis due to secondary infection after scratching.

3. Squamous keratinization type: it occurs in heel and foot margin. Because fungal infection leads to dry skin, thick cutin and desquamation, chapped skin is easy to appear. This type has no blister and suppuration, and the course of disease is slow, and it does not heal all the year round. Most patients are transformed from erosive type and vesicular type.

Prevention and care

prevent

1. Keep feet clean and dry, and treat sweaty feet. Change your shoes and socks frequently. People with tight toes can put toilet paper in the middle to absorb water and breathe. Shoes should be well ventilated.

2. Don't use other people's slippers, bath towels and wet wipes. Don't walk in the sewage beside bathhouses and swimming pools.

3. Public bathhouses and swimming pools should always be treated with sewage and disinfected with bleaching powder or chloramine to form a system to prevent beriberi from infecting each other.

4. Prevent shoe cabinets from being infected with beriberi

If someone in the family suffers from beriberi, shoes contaminated by fungi are easy to breed in a dark and unventilated shoe cabinet. Moreover, the scattered dander in the shoe cabinet also carries a lot of fungi. Originally clean shoes, if placed in such a shoe cabinet, may be contaminated by bacterial dander, contaminated by adjacent "dirty shoes" and infected with fungi. If you wear such shoes, you may get beriberi or your toenails turn gray.

Therefore, experts remind that patients with beriberi should not only actively use drugs for treatment, but also pay attention to cleaning shoes and socks at ordinary times, especially paying attention to frequent ventilation and drying of shoe cabinets; If the shoe cabinet can't move, it should be scrubbed regularly with disinfectant or put in desiccant to remove moisture. While cleaning the shoe cabinet, don't forget to wipe the shoes with a dry rag, and put some deodorizing bags made of spices, tea and bamboo charcoal in the shoes to eliminate germs and odors.

In addition, when choosing a shoe cabinet, be careful not to choose the one that inclines inward, because this design is not conducive to cleaning, while the shoe cabinet that inclines outward is convenient to take and clean.

Shoes stored in the shoe cabinet should be divided into different shoe areas according to family members, such as men's, women's and children's areas, and can also be used to distinguish common and uncommon shoes to avoid mutual infection.

What problems should we pay attention to when treating beriberi?

Note 1: Standardize medication, and use it all the time.

The repeated attacks of beriberi have a lot to do with patients' failure to insist on medication. These patients often stop taking medicine as soon as the symptoms of beriberi are relieved, and then take medicine when beriberi attacks again. This practice makes beriberi difficult to cure, and long-term beriberi may lead to diseases such as onychomycosis and even erysipelas. Experts suggest: "beriberi fungus grows and reproduces in the stratum corneum of the skin, and it needs long-term medication to kill it." The metabolic cycle of the skin is about 28 days, and the medication time must be more than four weeks. If it is "closed when it is ready", it is difficult to completely kill fungi. "Some drugs have a short antifungal duration and need to be used several times a day. But it is very difficult for some people, such as nine-to-five office workers. Forgetting to take medicine or work hours for privacy reasons will become a stumbling block to taking medicine many times a day and affect the therapeutic effect. Therefore, when choosing antifungal drugs, it is best to choose once a day for drug treatment, which can not only avoid the tedious use of drugs many times a day, but also help patients to insist on taking drugs.

Precautions for beriberi 2: Bactericide is the core of treatment.

Itching is a common phenomenon in the onset of beriberi, which also leads many beri patients to give priority to the antipruritic effect when choosing drugs. As we all know, many antipruritic drugs for beriberi are pure hormone drugs. Hormone drugs can relieve allergic itching, but the hormones contained in them will become the "nutrients" of fungi, making fungi reproduce at will. Therefore, hormone drugs alone will not only cure the symptoms, but also lead to the proliferation and infection of beriberi fungi, which is becoming more and more serious. Experts suggest that patients with beriberi should not simply choose hormonal drugs when choosing drugs. Because athlete's foot is caused by fungi, when choosing drugs to treat athlete's foot, we must choose bactericide, which is the core of treating athlete's foot. At present, among the fungicides on the market, one with strong bactericidal effect and lasting action time, such as bifonazole (MEK), should be selected as far as possible. Bifonazole is a broad-spectrum antifungal agent with strong bactericidal power. Bifonazole can not only effectively inhibit various skin fungi and yeasts, but also inhibit and kill molds and biphasic fungi. In addition, bifonazole acts on the skin surface for a long time, once a day, which is more convenient for many young people who work and convenient for insisting on treatment.

Note 3: Prevention begins with changing habits.

Berberi is very annoying, so we should develop good personal habits to prevent beriberi. It is understood that exposure to fungi does not mean that you will get sick. From skin contact to invasion, fungi will stay on the skin for as long as 12 hours, and during this period, it is only necessary to clean the skin with soap to prevent fungal invasion. To prevent beriberi, the feet should be kept clean, especially in summer, and the feet are prone to sweating, so they should be cleaned in time and kept as dry as possible; Shoes and socks should be washed and changed frequently, and it is best to wear sweat-absorbing cotton socks at ordinary times.

In addition, don't cut your nails too deep, and don't wear too tight shoes, especially high heels worn by women, which are most likely to squeeze your nails and cause beriberi and paronychia. Family members, if someone has beriberi, should avoid using sanitary appliances. With the rise of nail industry and pedicure industry in the market, the probability of beriberi spreading increases accordingly. Relevant industries need to strengthen the norms of health laws and regulations, and employees need to improve their professional quality and maintain personal hygiene, so as not to let beriberi become a "fashion disease".