Treating allergic rhinitis may have a downstream effect on concomitant asthma and this may be due to attenuation of the underlying inflammatory process.
Fexofenadine and montelukast exhibited additive effects to moderately high doses of inhaled corticosteroids when used as add-on therapy in the treatment of patients with persistent atopic asthma. (more…)

This study compared the diagnostic value of intradermal tests and patch tests in 20 patients with non-immediate reactions to penicillin (none had IgE antibodies to benzylpenicillin or amoxicillin detectable using a commercial RAST [radioallergosorbent test] method), using 30 patients tolerant to penicillin as controls. Intradermal tests assessed reactivity to injection of major and minor determinants of benzylpenicillin, amoxicillin and ampicillin. Allergy patch testing involved the same hapten solutions used for intradermal testing, either embedded in a patch disk or mixed with petrolatum. (more…)
There is much controversy as to the role of allergen exposure for the development of atopic sensitization towards this allergen. While in some studies, a clear, almost linear dose-response relation between allergen exposure and sensitization has been found, others described a bell-shaped association with higher levels of exposures relating to lower rates of atopic sensitization. Part of the discrepancy may relate to the type of allergen, since mostly cat but not house dust mite allergy allergen exposure has been shown, in some studies, to exert protective effects at higher levels of exposure. (more…)
Patients (and many doctors) frequently use the term ‘allergy’ when referring to any adverse drug reaction, even one that has no features of an IgE-mediated allergy response. However, IgE-mediated allergy explains only about 10% of all adverse reactions to antigen antibody reactions from antibiotics. Patients who have experienced unexplained symptoms during treatment with two or more antibiotics are often said to have ‘multiple antibiotic allergy’; using this definition, the description can be applied to one patient in every 22. (more…)

Drug allergy reactions may be classified, at least theoretically, according to one of four implicated immunologic mechanisms, according to the scheme of Gell and Coombs:
Type I Drug Allergy Reactions
Type I reactions are the result of an IgE antibody reaction, which induces immediate-type hypersensitivity reactions. (more…)

Allergic reactions is natural body’s response to “foreign substance” or “invader” that potentially harmful to your body. Once this object which is known as “antigen” entered your body, immune system will trigger some series actions to fight against infections. There are some common substances which are related as allergens: dust, pollen, mold, plants, chemicals, foods, insect, hymenoptera venoms, bacteria or viruses. (more…)