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Demodex folliculorum. The skin condition known as demodex folliculorum is also known as pityriasis folliculorum or spinulate demodicosis. It is a form of digitate keratosis, with slight redness and sandpaper-like texture of the skin due to follicular scale. It can cause irritation and burning sensation. How is demodex diagnosed?
Histology Special studies Differential diagnosis. Demodicosis is caused by two species of follicular mites, Demodex folliculorum and Demodex brevis, which are normal inhabitants of human skin. Although the mites are ubiquitous on sebaceous -rich skin, they sometimes cause dermal reaction and consequent erythema, pustules, and inflammatory plaques.
Mites (Demodex folliculorum) What is the treatment for scalp folliculitis? The scalp affected by folliculitis should be washed with a mild normal shampoo as often as desired. Antidandruff shampoos containing antifungal agents such as ketoconazole or ciclopirox are sometimes helpful. Conditioner can be used if desired.
Mites have a distinct gnathosoma (mouthparts) and no division between abdomen and cephalothorax. Demodex folliculorum resides in the hair follicles of the nose and cheeks. They have not been proven to cause disease but have been implicated in rosacea and a sandpaper-like facial rash, pityriasis folliculorum.
Bacterial overgrowth of the small intestine, Helicobacter pylori infection, and increased density of Demodex folliculorum and Staphylococcus epidermidis on the skin may play a role in skin inflammation. Dysregulation of the immune response may lead to excessive inflammation, vasodilation, lymphatic dilatation, and angiogenesis. Neurocutaneous ...
The majority of microorganisms on our skin are commensals, as they infrequently cause ill health. However, in some circumstances commensal microbes such as S. epidermidis have beneficial or pathogenic roles. Commensal microorganisms can prevent colonisation of pathogenic microorganisms such as S. aureus. For example:
Periocular dermatitis is a localised form of periorificial dermatitis. It is characterised by small red scaly papules and pustules located around the eye [1]. Periorificial dermatitis includes perioral dermatitis or periocular dermatitis alone, or in association. Perioral dermatitis describes an eruption around the mouth and nose.
Folliculitis on the face or scalp of older or immunosuppressed adults may be due to colonisation by hair follicle mites (demodex). This is known as demodicosis. The human infestation, scabies, often provokes folliculitis, as well as non-follicular papules, vesicles and pustules. Folliculitis due to irritation from regrowing hairs
Side effects of oral ivermectin are rare and usually minor. These include: Transient tachycardia (fast heart rate) Flushing. Nausea. Lightheadedness. In treatment of onchocerciasis; fever, rash, muscle or joint aches and tender glands and eye irritation/swelling or pain. In treatment of strongyloidiasis; diarrhoea, skin rash.
Other follicular skin conditions. Acne agminata. Acne necrotica (scalp folliculitis) Acne urticata (itchy spots) Comedone naevus. Cysts. Disseminate and recurrent infundibulofolliculitis. Enlarged pores. Folliculitis.