Suggest Treatment For Urticaria After Immunization Of Tuberculosis

my name is norhaslini,i am a medical student of physiotherapy studied at masterskill college ipoh campus.. i have an ellergic reaction after that immunisation of tuberculin injection.after that drug administered to my body within few day my body feel very itching when i take bath,sweating, i already go to medical check up to get perfect diagnose.so the doctors say that i have aurticaria..due to this condition i cannot stand anymore when everyday need to take drug certrizine and piriton to control it.please help me.ibecause that drug make me feel malaise and drowsiness.