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A fixed drug eruption is the term for a drug eruption that occurs in the same skin area every time the person is exposed to the drug. Eruptions can occur frequently with a certain drug (for example, with phenytoin [8]), or be very rare (for example, Sweet's syndrome following the administration of colony-stimulating factors [9]).
Pseudo-allergic reactions in which a drug directly stimulates mast cells, basophils, and/or eosinophils to release pro-allergic mediators (e.g. histamine); Type I, Type II, and Type III hypersensitivity reactions of the adaptive immune system mediated by IgE, IgG, and/or IgM antibodies; and
Fixed drug reactions are common and so named because they recur at the same site with each exposure to a particular medication. [1] Medications inducing fixed drug eruptions are usually those taken intermittently.
Rosacea. What it looks like: Rosacea causes redness and thick skin on the face, usually clustered in the center.Easy flushing, a stinging sensation, and small, pus-filled pimples are other common ...
AGEP is an acute drug eruption characterized by numerous small, primarily non-follicular, sterile skin pustules arising within large areas of red swollen skin usually within days of taking an inciting drug. [6] The skin eruptions are often pruritic and accompanied by fever, headache, a high number of neutrophils and eosinophils in the blood ...
The symptoms of DRESS syndrome usually begin 2 to 6 weeks but uncommonly up to 8–16 weeks after exposure to an offending drug. Symptoms generally include fever, an often itchy rash which may be morbilliform or consist mainly of macules or plaques, facial edema (i.e. swelling, which is a hallmark of the disease), enlarged and sometimes painful lymph nodes, and other symptoms due to ...
Type A: augmented pharmacological effects, which are dose-dependent and predictable [5]; Type A reactions, which constitute approximately 80% of adverse drug reactions, are usually a consequence of the drug's primary pharmacological effect (e.g., bleeding when using the anticoagulant warfarin) or a low therapeutic index of the drug (e.g., nausea from digoxin), and they are therefore predictable.
TEN ultimately results in extensive skin involvement with redness, necrosis, and detachment of the top (epidermal) layer of the skin and mucosa.Before these severe findings develop, people often have a flu-like prodrome, with a cough, runny nose, fever, decreased appetite and malaise.