https://www.mayoclinic.org/diseases-conditions/hives-and-angioedema/diagnosis-treatment/drc-20354914
Hives and angioedema - Diagnosis and treatment - Mayo Clinic
Oct 27, 2023 ... For severe hives or angioedema, doctors may prescribe a short course of an oral corticosteroid drug — such as prednisone — to reduce swelling, ...