Dermatophytosis, an acute superficial skin infection caused by bacteria, is mostly invaded by a break in the skin or mucous membrane, such as tinea pedis, stab wounds, etc., which then causes an acute infection of the intradermal reticular lymphatics, so it is also called acute reticular lymphangitis. The disease mostly occurs in the lower extremities and face, with rapid onset, heavy symptoms, and rapid spread, and a sudden acute onset after an incubation period of 2-5 days, with inflammatory features such as redness, swelling, heat, pain, and systemic symptoms such as fever, chills, headache, and vomiting. The red color will fade when the finger is lightly pressed; once the finger is released, the red color will quickly return. The rash can spread rapidly in all directions and rise above the normal skin surface, sometimes blistering can occur, and the lesion is feverish and painful, and the nearby lymph nodes are often enlarged and painful. As the redness spreads in all directions, the central redness fades, flakes, and turns brownish-yellow in color. Local burning pain can sometimes occur in the erythematous area with blistering. Some cases are complicated by inflammation of the tubular lymphatic vessels, with bright red lines emanating from the damage and progressing very rapidly toward the center. At the same time, the nearby lymph nodes are often enlarged and painful. Tinea pedis or haemosiderosis infection may cause recurrent lower limb dermatophytosis. Patients with venous insufficiency and venous stasis in the lower extremities are also prone to the development of dermatitis. Sometimes it can also cause lymphatic vessel obstruction, tissue thickening, and the formation of elephantiasis. A few serious patients can cause meningitis, acute nephritis, endocarditis, and even sepsis, and the prognosis is very serious. Therefore, the prevention and treatment of dermatophagoides is very important. The name “Dan Poison” was first found in Chinese medicine, and the “Treatise on the Origin of Diseases” pointed out that “Dan Poison, the human body suddenly {red, such as the shape of Dan coating, so called Dan. It may occur in the hands and feet, or in the abdomen, as large as the palm of the hand.” Due to the different locations and clinical manifestations, there are different names in the Chinese medical literature. Those who develop in the head and face are called “head-holding fire dan”; those who develop in the chest and abdomen are called “internal hair dan poison”; those who develop in the legs and shins are called “flowing fire” and “leg wandering wind “; according to the shape of the disease, there are also “chicken crown Dan”, “dogwood Dan” and other names. According to Chinese medicine, this disease occurs mostly due to heat in the blood, external exposure to wind-damp-heat evil, internal and external combination of evil, depressed in the skin, congestion for fire poison and outbreak. Or due to skin damage and infection of evil toxins and induced. Most of the attacks are caused by wind-heat on the head and face, liver fire on the lower back and waist, and damp-heat on the lower limbs. According to modern medicine, there are two conditions for the onset of dermatophagoides, one is that there is a break in the skin, and bacteria can invade through the break and cause infection. Therefore, we must prevent skin trauma, burns, frostbite, foot chaps, etc.; we must also actively treat skin damage diseases of the lower extremities, such as tinea pedis, skin diseases, chronic ulcers, vasculitis, diabetic foot, etc. Secondly, the local skin resistance is reduced. The common diseases that cause the decrease of resistance are, lower limb venous reflux disorder, saphenous varicose vein, thrombophlebitis, lower limb skin dystrophy, filariasis, elephantiasis and other diseases. This can be complicated by local skin stasis, hypoxia and poor circulation, resulting in a decrease in resistance to disease and becoming the endogenous cause of dermatophytosis attacks. Especially in summer, the attacks are frequent. In addition, do not overexert yourself and stand for a long time; do not trip in the rain in summer; do not squeeze or pinch when the skin of dermatophytosis area becomes painful and itchy. Taking medicine to prevent recurrence will not help, and long-term use of antimicrobial agents will also produce drug resistance and side effects. Once the signs of recurrence appear, you need to seek immediate medical attention. The rapid development of the disease of dermatitis, must be detected in time, as early as possible to confirm the diagnosis, so as not to delay treatment. If the first attack is treated in time, the acute attack can be quickly controlled, but for patients with recurrent attacks, the local dark redness and swelling and pain cannot be significantly reduced after medication, and there is still a lack of strong measures, and drug resistance changes with the use of antibiotics, and drug-resistant strains are on the rise, making treatment more difficult. Western medicine usually adopts high-dose antibiotic anti-infection treatment, but the treatment effect is poor, and the incidence of antibiotic drug resistance is increasing year by year, and some patients will be extended to subacute or chronic after the simple application of Western medicine treatment, which is difficult to cure in the short term. In particular, the combination of internal Chinese medicine and external Chinese medicine such as external application and external baptism fully reflects the spirit of “external treatment is internal treatment, and external treatment is internal treatment” in Chinese medicine, with remarkable efficacy. In the treatment of dermatophagoides, it is necessary to pay more attention to the treatment of basic diseases, such as varicose veins of lower limbs, thrombophlebitis, etc. Microwave minimally invasive combined with traditional Chinese medicine can be used to treat varicose veins of lower limbs, because these basic diseases are the cause of recurrent attacks of dermatophagoides. During the treatment period, you should pay attention to rest and drink more warm water. And isolate from healthy people to avoid direct contact. Avoid eating spicy, meat and greasy products, and eat more vegetables and fruits. How to prevent Dengue? In daily life, you need to pay attention to the following points: 1, pay attention to personal hygiene, keep the skin clean. Healthy skin has a blocking and killing effect on germs, and infection is generally not easy to occur, but dirty skin is a breeding ground for germs, which provides nutrients for the growth and reproduction of germs. Therefore, frequent attention should be paid to skin hygiene, and frequent bathing and changing of clothing should be done. Lower extremity tinea is mostly caused by tinea pedis or trauma to the lower extremities. Secondly, it is related to the lowered immunity of the body and other basic diseases, such as lower limb venous reflux disorder, saphenous varicose vein, thrombophlebitis, and lower limb skin dystrophy. Due to the local skin stasis, hypoxia, poor circulation, resulting in reduced resistance to disease, become the endogenous cause of the attack of dermatitis. These diseases should be treated as early as possible, such as actively taking minimally invasive surgery combined with traditional Chinese medicine to treat varicose veins of the lower limbs and other underlying diseases, which is conducive to reducing or avoiding recurrent attacks of dermatitis. 2, change bad habits, care for their own organs. Many people have the bad habit of picking their nostrils and pulling out their ears, which is often an important cause of facial dermatophytosis. The nasal cavity and the auricle have a good defense barrier, self-defense ability is very strong, germs are not easy to invade. The human hand is usually contaminated with many bacteria, picking nostrils, ear pulling is very easy to damage the mucous membrane of the nasal cavity, the skin of the auricle, the germs into the breakage, it will cause infectious diseases such as dermatitis, serious, germs through the facial vessels into the cranial spongy sinus, may lead to serious consequences. Therefore, you should change your bad habits and take care of your organs. 3, the correct treatment of itching, do not scratch with your hands. Foot fungus, dermatitis and other common diseases, itchy and irritating, fidgety, many patients scratch frequently. This is a strong damage and destruction to the skin, and the nails that hide dirt when scratching will inoculate the germs to the broken skin, making it very easy to cause a tinea-like infection. You may want to try cold compresses or topical ointments, both of which can stop the itch and do no damage to the skin. To treat itching, the most important thing is to eliminate the cause of the disease. 4, try your best to disinfect the bacteria and prevent contact infection. There are many pathogenic bacteria active in people’s living environment, including Streptococcus haemolyticus, through the contact of clothes, hats and utensils, causing infectious diseases such as dermatophytosis, which is threatening people’s health from time to time. 5, be alert to the initial onset of dermatophytosis, early and proper treatment. After scratching the skin, when a localized flaky red rash with a rose-like color and a clear perimeter appears, you should be highly alert to the occurrence of dermatophytosis. At this time, you should consult a doctor in a timely manner, especially at a large hospital specializing in dermatophytosis, to receive professional guidance and treatment from a specialist.