 [ Symptoms ] flu shot first of oct got hives 2 week later going on 3 months can i be allegic to done seen doctor no help not allegic to eggs big welts with a bump in the middle some the size of an egg others the size of a grapefruit they last about a week go away and come back about a week later the doctor and i have gone thru everything and i did nothing new or ate nothing new only different is the flu shot can it be the shot and how can i stop it [ Disease ] it is not the flu shot especially two weeks later your hives are being caused by something else so if your doctor does not have a clue ask for a referral to an allergist