when in fact they had mononucleosis. An allergic reaction may cause an amoxicillin rash. According to the Centers for Disease ...

Or a child who tested positive for strep is put on an antibiotic, such as amoxicillin, and develops a bad rash a few days later, which is characteristic of mono. But even if a child with strep ...

Avoid in those with mononucleosis ... potentiates amoxicillin: not recommended concomitantly. May potentiate oral anticoagulants (monitor). Increased risk of rashes with allopurinol.

Twelve patch-test-positive patients with a history of a drug rash to antibiotics were challenged (data on the type of drug rash were not reported separately), and the majority (9 of 12 ...