General: it is skin damage caused by harmful fungi infecting hands and feet. They are called tinea manus and tinea pedis respectively. Tinea manus is commonly known as goose's paw wind, beriberi is commonly known as beriberi, and tinea manus and pedis are collectively referred to as tinea manus and pedis.
Disease introduction: tinea manuum is a fungal infection of palm skin. If only the back of the hand is involved and ring-shaped or multi-ring damage occurs, it is still called tinea corporis. Tinea manus is common all over the world, with a high incidence in China. Long-term immersion and friction injury of hands and contact with detergents and solvents are important causes of tinea manuum infection. Most of the patients are young and middle-aged women, and many of them have a history of wearing rings.
Pathogenesis: tinea manuum mostly comes from the direct contact infection of scratching tinea pedis, tinea cruris and tinea capitis or the spread of onychomycosis and tinea corporis on the back of hand. Trichophyton rubrum is the main pathogen of tinea manuum, accounting for 55.6%, followed by Trichophyton gypsum, accounting for 22.7%. Candida albicans can also cause the same damage as tinea manus.
Clinical symptoms: there are two types: blister scale type, and the incidence is mostly a single case. The first is to start from a certain part of the palm, especially the palm, side and root of the index finger and ring finger. It starts with a needle-sized blister with a thick and shiny wall and clear liquid. Blisters gather or disperse in groups, and feel itchy. After drying, the blister falls off and gradually spreads around, forming a ring-shaped or multi-ring injury with clear edges. Sometimes blisters can be secondary to infection and form pustules.
Keratinization and thickening type: The patient has many years' medical history, often involving both hands, without obvious blisters or annular desquamation, diffuse swelling and thickening of the palm surface, deepened dermatoglyphics, rough skin, dry desquamation, chapped skin in winter, deep fissure bleeding, unbearable pain, affecting activities, and long-term scratching besides dermatophytes.
Diagnosis: Starting from a certain part of the palm, slowly expanding, and finally involving most, all or even both palms. The lesions are erythema, blisters, scales and keratinization thickening. The diagnosis should be considered as tinea manus, and the diagnosis can be made if the fungus test is positive.
Diagnostic points of tinea manus
1. The rash occurs on the side of fingers, flexion, between fingers, palm and palmar margin. The rash is usually confined to one side.
2. It often happens or gets worse in summer and gets better in winter.
3. Rash can be divided into three types: blister type, scale type and erosive type. Each type can be transformed into each other or exist at the same time, but the performance of a certain type often dominates at a certain moment.
(1) Blister type: the rash is a deep small blister, scattered or clustered, with a small amount of scales after rupture or absorption. Self-conscious itching is obvious, and secondary infection is often caused by scratching or picking blisters with needles.
(2) Scaly type: characterized by hyperkeratosis, dryness, roughness, desquamation and redness of the base. More than one hand appears, and both hands can participate. Consciously itchy, often chapped and painful in winter.
(3) erosive type: mostly in the fingers. The local epidermis is moist, soaked, whitish, and consciously itchy. After the epidermis is damaged, flush and rotten surface are exposed, and at this time it feels itchy and burning. Secondary infection is often caused by scratching.
4. The course of disease is slow, and it usually does not heal for many years.
5. Further diagnosis can be made by direct microscopic examination or fungal culture examination.
Auxiliary examination: scrape off scales, pick out blister solution and add 10%koH for microscopic examination, and separate hyphae can be seen. However, the positive rate of keratinized and thickened tinea manus is low and needs repeated examination. Take scales or blisters and inoculate them on Sheikh agar, and keep the temperature for culture, and colonies will grow within 2 weeks. According to the morphology and microscopic characteristics of colonies, strains can be identified.
The latest therapy:
Crest cream
Function: Kelei cream has long-term anti-inflammatory, anti-allergic and antipruritic effects. The transdermal enhancer can increase hydration of stratum corneum and eliminate fever and redness caused by local inflammation. Soluble keratin increases protein. Prevent skin keratinization and increase skin permeability and softness.
Indications: psoriasis (psoriasis), lichen planus, neurodermatitis, contact dermatitis, seborrheic dermatitis, eczema, skin itching, tinea manuum (tinea pedis), viral herpes, acne, and various stubborn tinea.
User:
1, psoriasis (psoriasis).
2. Lichen planus.
3. Neurodermatitis and contact dermatitis.
4. seborrheic dermatitis and eczema.
5, tinea manuum (goose palm wind) tinea pedis, broken hands and feet.
How to use:
For external use, apply it to the affected area 2-3 times a day, and change it to/kloc-0 times a day after 3-4 days, until it is cured. When treating patients with intractable skin, twice a day for 5 days, stop taking drugs for 5 days and stop taking drugs for 2 days. Repeat this for two weeks as a course of treatment.