Possibly: Allergy to a drug can develop at any time while taking it.
Answered 8/24/2013
5.2k views
Yes: And you should not only stop the Keflex immediately, but make sure that you never again take a cephalosporin antibiotic without being in the presence of a doctor who knows what occurred with the Keflex and is trying to desensitize you to treat an infection that cannot be managed with an alternative class of drugs.
Answered 6/26/2014
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