https://www.healthcentral.com/article/when-allergic-reaction-medication-start-taking-predisone-it-long-does-hives-usually-last-treatment-begins
Allergies

When You Have An Allergic Reaction From A Medication, And You Start Taking Predisone For It, How Long Does The Hives Usually Last After Treatment Begins?

    You should know: The answer above provides general health information that is not intended to replace medical advice or treatment recommendations from a qualified healthcare professional.