1) since this is chronic urticaria
try to find the trigger factor e.g soap,oil,dust mites,food,environment etc.
2) could plan a allergy
for 5week or long term may not be enough ,one needs to break the cycle of formation of hives so add in oral steroid
for a period of 7-10days and then taper it .there will be complete disappearance of these urticaria.