Dr. Richard Thomas is a practicing dermatologist at Sidra Research and Medical Centre in Doha, Qatar. In addition to his practice, he has been a long-time and well-respected researcher, speaker, and author in dermatology. Dr. Thomas has been the editor in chief at Skin therapy letter and has contributed regularly.
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Psoriasis is a chronic inflammatory cutaneous disorder that can significantly affect patient quality of life (QoL). This article discusses immunologic abnormalities, immune mediators, and the possible pathogenesis of psoriasis.
Hand dermatitis (HD) is a common skin disorder affecting individuals of all ages. This article discusses diagnostics, individualizing treatments, lifestyle modifications, and outcomes.
Head lice infestations (Pediculosis humanus capitis) are most prevalent during childhood in industrialized countries. It is estimated to occur in about 1-3% of children aged 6-12 years. Greater susceptibility is associated with girls, which is likely attributed to close contact play and the sharing of objects.
Advancements in topical antipsoriatic therapies have provided safer and more effective treatment options, especially when used in combination. Consequently, much research is underway to investigate novel treatment combinations for psoriasis in the hope that it will provide further enhancements in efficacy.
Topical retinoids are the cornerstone of acne therapy and they can be used across the entire spectrum of acne severity. Selecting the most suitable retinoid formulation, as well as dispensing proper advice in terms of drug application, can improve patient compliance.
Since patient compliance is a concern, a great deal of attention must be given to the methods available to minimize the chance of irritation. In the opinion of the author, this may be the single most important factor influencing the success of topical therapy in acne.
Malassezia are lipophilic yeasts that are normal commensals on the skin surface. There are seven species of these yeasts, which were previously called Pityrosporum. The conditions described in this article are either caused by the Malassezia itself or from some kind of immunological or toxic reaction to the organism.