Bacteria and the skin: clinical practice and therapy update.

Abstract

Any doctor using antibiotics should be aware of the increasing worldwide problem with multiresistant bacteria, with the majority of hospital-based infections in some countries being caused by these bacteria. Proper use of antibiotics is therefore mandatory for any physician, including for dermatologists, who treat bacterial infections of the skin. Detailed knowledge is needed of when to use topical versus systemic antibiotics, and for how long such treatments should be given. Besides the clinical symptoms of bacterial infections and treatment guidelines, an increased awareness has focused on the possible importance of bacterial toxins, including superantigens, and their contribution to skin inflammation. Rare syndromes such as Kawasaki's syndrome, toxic epidermal necrolysis or staphylococcal scalded skin syndrome, are well-known diseases elicited by specific bacterial toxins. But many observations give indirect support to the notion that bacteriae can augment the immune inflammation seen in common and important diseases such as psoriasis and atopic dermatitis. This supplement provides up-to-date information about skin bacteriology, information on the possible importance of superantigens for chronic skin diseases, and practical guidelines for the use of both topical and systemic antibiotic therapy, together with a review of the dangers following improper use. This information is important for all doctors, including dermatologists.