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Patch test helps in identifying the allergen causing allergic contact dermatitis. Proper identification of the site of individual patch test allergen is very important for identifying the positive allergen. In this article, various techniques for markings patch test sites are discussed. [ABSTRACT FROM AUTHOR]

This article discusses the association between atopy (a predisposition to allergic diseases) and leprosy. The authors raise some points of clarification regarding the study that found an association between atopic diseases and leprosy. They suggest that the use of the International Study of Asthma and Allergies of Childhood (ISAAC) questionnaire for diagnosing atopy may have led to an overestimation of the condition. They also highlight the difficulty in differentiating between symptoms of atopic diseases and leprosy. The authors recommend that atopic diseases diagnosis should be based on a comprehensive evaluation and suggest further analysis of the results by categorizing participants into different groups. [Extracted from the article]

The article presents information on the use of Beta-blockers in dermatology. Topics discussed include classification of Beta-blockers as nonsubtype-selective, beta 1-selective and nonsubtype-selective or subtype-selective with additional cardiovascular actions; mechanism of action of Beta-blockers which antagonize the effects of sympathetic nerve stimulation; and pharmacokinetics of Beta-blockers.