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Pityrosporum folliculitis.

OVERVIEW: Pityrosporum folliculitis is a folliculitis change caused by Pityrosporum ovalis and is characterized by dome-shaped follicular papules or pustular-like lesions.

Clinical manifestations:1It is more common in young adults; 2.Lesions are more common on the chest, back, and upper arms;

3.Lesions appear as dome-shaped follicular papules or pustular-like lesions, 2 4 mm in diameter, and are ineffective on acne**.

Basis for diagnosis:1Skin lesions are more common on the chest, back, and upper arms; 2.typical lesions;

3.direct microscopic examination of skin dander showed short rod-shaped hyphae and round spores;

4.Histopathology of skin lesions (PAS staining) shows a large number of round or oval budding spores in the hair follicles.

**Principles:1Systemic antifungal drugs for oral administration. 2.Topical antifungal preparations.

Principles of medication:1If the area of the skin lesion is more limited, it is mainly used externally**; 2.Systemic antifungals may be considered for patients with extensive and persistent skin lesions.

Ancillary tests:1The examination case of patients with typical clinical manifestations is mainly based on the examination frame "a"; 2.For those with diagnostic difficulties, the examination package may include the examination frame "b".

Efficacy evaluation:1**: Skin lesions regressed, direct microscopic examination of the fungus was negative once a week, 2 consecutive negative, and intrafollicular spores were negative in the histopathology (PAS staining) of skin lesions;

2.Good ** partial regression of skin lesions, negative or positive direct microscopic examination of fungi, positive intrafollicular spores in skin lesion histopathology (PAS staining);

3.Unhealed: no improvement in skin lesions, positive direct microscopic examination of the fungus, positive intrafollicular spores in histopathological (PAS staining) of skin lesions.

Expert tips: pay attention to personal hygiene, this disease is easy to be misdiagnosed as acne, easy to **, and you should go to the hospital for medical treatment in time after illness. Under the doctor's guidance, thoroughly disinfect the used clothes during the period to achieve the purpose.

First of all, the fruiting body, it is concentrated into a dense sphere through the mycelium underground, and then arranged into a small fruiting body, when the cell becomes longer, the sphere formed by the mycelium will grow out of the ground, the mycelium will rupture, and the stipe and cap will grow taller and grower, which is our common mushroom. Let's talk about the mycelium in the ground; The folds of mature umbrellas are covered with a special membrane, the spore tables that form the spores. The spores are only a few thousandths of a millimeter in size and are carried by the wind.

When the nutrients are sufficient, and the temperature and humidity are suitable, these spores will sprout and grow, forming hyphae and mycelium. Mycelium is made up of a large number of hyphae, which in turn are made up of long cells.

Therefore, the mushroom suddenly grows overnight, it is the credit of the underground mycelium, when the mushroom grows old rapidly, it forms spores again, drifts to various places with the wind, falls into the ground to form mycelium, and so on, and the mushroom grows again the next year.

The living range of fungi is relatively special, basically growing on decaying animals and plants, and precious Hericium erinaceus is found on dead tree trunks or dead branches such as oak; Under decaying leaves, shrubs or meadows, find rings or mushrooms growing in rows. We usually find boletus under oak or beech trees; Delicious hazelnut mushrooms in the hazel grove and much more. Even the decaying feces of animals can grow fungi.

However, it should be noted that toadstools can also be mixed together, making it difficult to distinguish between real and fake. The way fungi obtain nutrients and energy is by breaking down decaying plants and animals.

Now the number of fungi is decreasing rapidly, which is related to the over-harvesting and unprotected harvesting. The destruction of the natural environment by humans has changed the living environment of fungi. Many fungi in forest-steppe swamps have disappeared.

Increasing air pollution and acid rain can cause serious damage to forests, and the various fertilizers and pesticides used in agriculture also accelerate the death of fungi as the rainwater penetrates into the soil.

These losses, which are not caused by direct causes, are carried out quietly and slowly, often only when things are irreparable, and people realize the seriousness of the problem.

Fungi are multiplied with spores.

Sporomycetes are slow** infections of subcutaneous tissues and their adjacent lymphatic system caused by Sporotricha schenkii.

Sporotrichosis is a slow** infection of subcutaneous tissues and their adjacent lymphatic system caused by Sporotrichosis schenkii.

Chronic **, infection of subcutaneous tissues and their nearby lymphatic vessels caused by Sporotricha schenkii. The disease is sporadic in China, but it is mostly found in the coastal areas of Northeast China and south of the Yangtze River. Sporotriches parasitize plants and soil, and can be infected with this disease by trauma.

The pathogen is not easy to find in fungal microscopic examination, and fungal culture is required, and pus and tissue blocks are taken for fungal culture, and the diagnosis can be confirmed by identification of the bacterial species. Common sporotrichosis is lymphatic type, with many subcutaneous nodules along the regional lymphatic vessels, which can be punctured, granulomas and purulent lesions. There is also a fixed type, which is confined to one place, mostly on the face, neck, trunk, etc., and is often infiltrative granulomatous red plaque-like.

It can also invade mucous membranes, bones, joints, and can also have systemic damage. **Mainly potassium iodide is used internally, but local hyperthermia can also be used. Try griseofulvin and amphotericin B

All have certain effects.

This is a deep mycosis caused by sporotriches and mainly invades ** and occasionally mucous membranes, lungs, meninges and other internal organs. Before the onset of the disease, there is often a history of trauma, and then contact with the soil or plants with the bacteria, the bacteria will enter the human body from the injured **, after about 1 3 weeks, it will produce boil-like damage at the initial invasion site, generally no pain, no fever, ulcers are formed after ulceration, and there is not much pus; It can also be papules, verrucous lesions, plaques, cauliflower pseudotumors, etc. Lesions can be fixed in one place for long periods of time or spread up the lymphatic vessels, producing a series of similar lesions, several to dozens arranged in strips.

Generally, the upper limbs have the most common occurrences, followed by the lower limbs, and in recent years, the face has also been quite common. Rarely, it can invade the bloodstream, causing extensive spread of ** and internal organs. The diagnosis is confirmed by squeezing out the pus and blood from the lesion for culture, which often isolates the pathogenic organism.

Iodide has a special effect on this disease, generally with 10% potassium iodide solution, 10ml each time, three times a day, oral, the course of treatment is 2 to 3 months. Local warmth** may be an adjunct. Preventing ** trauma is important to prevent the disease.

The dressing changed by the patient should be burned so as not to pollute the environment and infect others.