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Between 3 and 10% of children taking amoxicillin (or ampicillin) show a late-developing (>72 hours after beginning medication and having never taken penicillin-like medication previously) rash, which is sometimes referred to as the "amoxicillin rash". The rash can also occur in adults and may rarely be a component of the DRESS syndrome. [48]
The reaction generally includes a constellation of fever; urticarial polycyclic wheals (a rash that can look similar to hives with small swellings that overlap each other [2]) with central clearing on the trunk, extremities, face, and lateral borders of the hands and feet; oral edema without mucosal involvement; lymphadenopathy; arthralgias; myalgias; and mild proteinuria.
Amoxicillin is an antibiotic while clavulanic acid is a non-antibiotic β-lactamase inhibitor which prevents metabolism of amoxicillin by certain bacteria. In addition to its β-lactamase inhibition, clavulanic acid shows central nervous system actions and effects and has been studied in the potential treatment of various psychiatric and ...
A small minority of people spontaneously present a rash, usually on the arms or trunk, which can be macular (morbilliform) or papular. [16] Almost all people given amoxicillin or ampicillin eventually develop a generalized, itchy maculopapular rash, which however does not imply that the person will have adverse reactions to penicillins again in ...
People may develop a rash, diarrhea or feel nauseated. "Those are just side effects" of the drug, said Dr. Gerald Volcheck, chair of allergic diseases at the Mayo Clinic in Rochester, Minnesota.
In addition, penicillin is available in different forms. There are different penicillin medications (penicillin G benzathine, penicillin G potassium, Penicillin G sodium, penicillin G procaine, and penicillin V) [3] as well as a number of β-lactam antibiotics derived from penicillin (e.g. amoxicillin).
The extremely itchy rash may be pimply, made up of tiny blisters, or scaly. Symptoms to note: After the initial exposure to scabies, it can take two to five weeks for symptoms to appear.
The most common type of eruption is a morbilliform (resembling measles) or erythematous rash (approximately 90% of cases). [7] Less commonly, the appearance may also be urticarial, papulosquamous, pustular, purpuric, bullous (with blisters) or lichenoid. [3] Angioedema can also be drug-induced (most notably, by angiotensin converting enzyme ...