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In most of those cases, people had long been told they were allergic to penicillin — usually after developing a rash within several days of taking the antibiotic as a baby or toddler.
Side effects may only last for a short time and then go away. Side effects can be relieved in some cases with non pharmacological treatment. [4] Some side effects require treatment to correct potentially serious and sometimes fatal reactions to penicillin. Penicillin has not been found to cause birth defects. [5]
This is a list of drugs and substances that are known or suspected to cause Stevens–Johnson syndrome This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources .
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]
Along with the rash, atopic dermatitis can cause itchiness and dryness. It can also cause skin to feel warm and swollen. After the rash heals, the skin may have a discoloration to it, the AAD says .
Antibiotics with less reliable but occasional (depending on isolate and subspecies) activity: occasionally penicillins including penicillin, ampicillin and ampicillin-sulbactam, amoxicillin and amoxicillin-clavulnate, and piperacillin-tazobactam (not all vancomycin-resistant Enterococcus isolates are resistant to penicillin and ampicillin)
Of course this supposes that someone reporting an allergy really has had an allergic reaction to the drug - the rash could have been from the disease itself (i.e. is a rash that develops with a sore throat promptly treated with a penicillin from the drug, or was the rash about to appear anyway as part of the disease i.e. scarlet fever). Also ...
The most common cause is certain medications such as lamotrigine, carbamazepine, allopurinol, sulfonamide antibiotics and nevirapine. [1] Other causes can include infections such as Mycoplasma pneumoniae and cytomegalovirus, or the cause may remain unknown. [2] [1] Risk factors include HIV/AIDS and systemic lupus erythematosus. [1]