In cutaneous candidiasis, the skin is infected with candida fungi. Sometimes, these yeast penetrate beneath the surface of the skin and cause infection. They include yeast-like fungi such as candida.
Some fungal infections are caused by fungi that often live on the hair, nails, and outer skin layers. Some of these are useful to the body, some produce no harm or benefit, and some can cause harmful infections. doi:10.1111/j.The body normally hosts a variety of germs, including bacteria and fungi. Pityriasis versicolor alba. J Eur Acad Dermatol Venereol. Tinea versicolor in dark-skinned individuals. Int J Dermatol. Antifungal treatment for pityriasis versicolor. J Fungi (Basel). The Malassezia genus in skin and systemic diseases. Clin Microbiol Rev. Gaitanis G, Magiatis P, Hantschke M, Bassukas ID, Velegraki A.Can pityriasis versicolor be treated with 2% ketoconazole foam?. J Drugs Dermatol. Reapplication of a topical treatment such as selenium sulfide shampoo every month once the rash has cleared will usually prevent recurrence. Oral terbinafine, an antifungal agent used to treat dermatophyte infections, is not effective for yeast infections such as pityriasis versicolor. A few days' treatment will clear many cases of pityriasis long term, or at least for several months. Bathing should be avoided for a few hours. Vigorous exercise an hour after taking the medication may help sweat it onto the skin surface, where it can effectively eradicate the yeast. Oral antifungal agents, itraconazole and fluconazole, are used to treat pityriasis versicolor when extensive or if topical agents have failed. This should be done daily for one week then weekly for one month. The medicine should be applied widely to the skin from the jawline down and left on the skin for 5-15 minutes before rinsing off in the shower. Topical azole cream/shampoo (econazole, ketoconazole).Mild pityriasis versicolor is treated with topical antifungal agents. What is the treatment of pityriasis versicolor? Topical measures The pink type of pityriasis versicolor is mildly inflamed, due to dermatiits induced by malassezia or its metabolites. The white or hypopigmented type of pityriasis versicolor is thought to be due to a chemical produced by malassezia that diffuses into the epidermis and impairs the function of the melanocytes. It is easier to demonstrate the yeasts in scrapings taken from this type of pityriasis versicolor than in those taken from the white type. The yeasts induce enlarged melanosomes ( pigment granules) within basal melanocytes in the brown type of pityriasis versicolor. One theory implicates a tryptophan-dependent metabolic pathway. It is not known why they sometimes grow more actively on the skin surface to form pityriasis versicolor. Usually malassezia grow sparsely in the seborrhoeic areas (scalp, face and chest) without causing a rash.
The most common species cultured from pityriasis versicolor are M globosa, M restricta and M sympodialis. Fourteen different species of malassezia have been identified. They are dependent on lipid for survival. Malassezia are part of the normal skin microbiota ( microorganisms found on normal skin). Pityriasis versicolor is caused by mycelial growth of fungi of the genus Malassezia. What is the cause of pityriasis versicolor? It may clear in the winter months and recur each summer.Īlthough it is not considered infectious in the conventional sense, pityriasis versicolor sometimes affects more than one member of a family. It often affects people who perspire heavily. Pityriasis versicolor is more common in hot, humid climates than in cool, dry climates. It can also affect children, adolescents, and older adults. Pityriasis versicolor most frequently affects young adults and is slightly more common in men than in women. Pityriasis versicolor is sometimes called tinea versicolor, although the term tinea should strictly be used for dermatophyte fungus infections. The multiple colours of pityriasis versicolor give rise to the second part of the name, versicolor. The term pityriasis is used to describe skin conditions in which the scale appears similar to bran.
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