Herpes circinatus bullosus, also known as bullous tinea, is a dermatological condition characterized by the presence of fluid-filled blisters or vesicles on the skin. It is a form of fungal infection, specifically a type of dermatophytosis, caused by the fungi Trichophyton rubrum or Trichophyton mentagrophytes.
The term "herpes" is used to describe the blister-like appearance of the lesions, which may be mistaken for a viral infection commonly known as herpes. However, it is important to note that herpes circinatus bullosus is not caused by the herpes simplex virus, but rather by the aforementioned dermatophytes.
The infection typically affects the skin, particularly in areas with a high concentration of sweat glands, such as the armpits, groin, or feet. The initial lesion usually presents as a circular, red, scaly patch of skin, often accompanied by itching or burning sensations. As the condition progresses, the central portion of the lesion may clear, resulting in a ring-shaped appearance with a raised, blistered edge.
In some cases, the blisters may become larger and filled with clear fluid, forming distinct bullae. The fluid within these blisters is highly contagious and can spread the infection to other areas of the body or to other individuals through direct contact.
Treatment typically involves the use of antifungal medications, either in the form of topical creams or oral medications, to eradicate the fungal infection. Good hygiene practices, such as keeping the affected area clean and dry, can also aid in the recovery process.
