Allergy inject,.what is the maximum size a "wheal" should be after an allergy injection? my flare is quarter size and wheal is silver dollar size.

Good question: I presume that you meant that the wheat was quarter size and the flare was silver dollar size. 2 studies noted that reducing the allergen dose only made you more likely to have local reactions but one report noted that increasing sizes of local reaction puts you at a higher risk for a systemic reaction. If intolerable, ask allergist to up the dose slower or take antihistamine 2 hrs before the shot.