Hi my name is Kelly. I took an allergic reaction to what is believed to be from the flu injection I recieved through work. I have been in and out of A&E for past week now as since injection 3 weeks ago I have been suffering from hives. Do you think this is going to be chronic as it has lasted 3 weeks, periton, telfast, cistitrine all being taken and none reducing or preventing new hives. Mainly appear during night.