Overview Adding a Short Burst of Corticosteroid to the Conventional Treatment of H1 Antihistamines in Emergency Department. Status: Completed Trial end date: 2019-10-31 Target enrollment: Participant gender: Summary A randomized, double-blinded, controlled trial of adding a short burst of corticosteroid to the conventional treatment of H1 antihistamines Phase: N/A Details Lead Sponsor: Chulalongkorn UniversityTreatments: BB 1101DexamethasoneDexamethasone acetateHistamine AntagonistsHistamine H1 AntagonistsMethylprednisoloneMethylprednisolone acetateMethylprednisolone HemisuccinatePrednisolonePrednisolone acetatePrednisolone hemisuccinatePrednisolone phosphate