The aim of this study was to investigate the validity of self-patch testing for nickel allergy, in order to determine a cost-effective method for surveillance of the prevalence of nickel allergy. Population-based study including patch testing is the most reliable method to study the prevalence of allergy, but it is expensive and has logistical problems. A total of 191 dermatology patients refer...

BACKGROUND Patch testing has been used as a screening tool to identify those allergens responsible for the development of allergic contact dermatitis. The objectives of this study were to identify the most common allergens found at the Patch Testing Clinic (PTC) of the Department of Dermatology, Medical Sciences Campus (MSC) University of Puerto Rico (UPR), to correlate patch testing results wi...

INTRODUCTION Atopy patch tests (APT) represent a relatively new diagnostic method for identifying the role of airborne allergens in atopic dermatitis flares. This study evaluates the role of airborne allergens in atopic dermatitis flares in a group of adult patients with atopic dermatitis. The primary goal was to detect the frequency of sensitization to these allergens in a group of patients wi...

A CADR is a skin eruption induced by drugs, systemic or topical drugs, used in adequate doses and in the correct indications. CADRs are a frequent problem in Dermatology, but their incidence is not exactly known; 1–5% of inpatients experience such a reaction and it is a frequent cause of consultation in Dermatology [1–5]. Most CADRs are mild, but about 20% can be severe and require hospitalizat...

INTRODUCTION AND OBJECTIVES Reports show that between 25% and 78% of patients with anogenital dermatitis have positive patch test results. Consequently, patch testing would appear to be warranted in patients presenting with eczema in the anogenital region. The objectives of the present study were to identify the most common allergens in patients with perianal eczema and to determine which aller...

: The present review addresses the literature regarding the sensitivity and specificity of the various diagnostic methods for evaluating non-immediate (ie, occurring more than 1 hour after drug administration) hypersensitivity reactions associated with beta-lactams and other antibiotics, anticonvulsants, heparins, iodinated contrast media, etc. Such reactions include several clinical entities, ...

Glucosides are non-ionic surfactants formed by the condensation of fatty acids with glucose (1). They have cleansing and emulsifying properties, and are used in shampoos and soaps, as well as in leave-on products such as lotions, and sunscreen agents. They are completely biodegradable, making them ecofriendly. Although contact allergies to glucosides have been reported, they are uncommon (2–6)....

Delayed-type hypersensitivity reaction or type IV allergic reaction can cause different oral manifestations. They can be localized or diffusely visible on oral mucosa and usually appear 24-72 hours after antigen input. The antigens that cause this type of reaction are mostly external, such as contact allergens (particularly metals) and drugs. It has been shown that the most common oral manifest...