small in size and rounded in shape. More in detail, these signs arise below the outer layer of the epidermis and have a diameter of less than 5 mm; inside them, a clear, serous or serum-haematic liquid is contained.
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The causes of blisters on the skin are numerous and include herpetic infections, exanthematous diseases, intense friction or rubbing, allergies and irritative contact dermatitis. The appearance of small vesicular lesions on the skin can also occur in patients with autoimmune diseases (such as pemphigus vulgaris), acne and impetigo. The skin can react with the formation of similar lesions even in case of insect bites or drug intolerance.
The blisters can be associated with other symptoms, such as pain, redness, or itching.
Treatment essentially depends on the etiology and may include various strategies to facilitate healing and prevent the onset of infectious complications.
, characterized by the collection of fluid (serous or serum-haematic) in the thickness of the epidermis or between it and the dermis.
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