Never Had Hives Before This Past Week, I Have Gotten

never had hives before this past week, I have gotten them randomly a few times, the last 2 days my hands have been itchy plus red and splotchy and somewhat painful. The hives haven't shown in a couple days, but thought maybe it was just that. have a history of high bp and on several bp meds, but they keep it under control most of the time. thinking it will just go away in a day or two any thoughts