most normal-weight adults will not become dehydrated from vomiting in six hours so you may not need iv fluid replacement but you would definitely benefit from some anti-vomiting medications like zofran (ondanstetron). the er team can provide that for you or perhaps your own doctor or the on-call doctor will call it in for you. signs of dehydration include: lack of tears/moisture in the eyes lack of saliva decreased or absent urine flow and "tenting" (if yoju pull up a flap of skin it should snap flat again with elastic intensity. if it remain "up" like tent this is a sign of severe dehydration).
i have been throwing up constantly for the past 6 hours. should i go to the er to get an iv for rehydration?