No, you don't have a viable malpractice claim. I would recommend sending a letter to the hospital and let them know how upsetting this was - but beyond that, you do not have a compensable claim under Virginia law that we would recommend pursuing. The costs of litigation would far exceed any recovery.
I am so sorry as I know this was stressful and made delivery even more difficult. However, it is not a viable lawsuit.
Some preliminary issues - NC law (not Virginia law) governs your potential claim so call a NC attorney to seek help.
While it is clearly negligent to administer a medication someone is allergic to, that is not the only question when deciding whether you have a case. You must also prove the negligence caused permanent and life changing injury - or else the costs of litigation will easily exceed any recovery.
Almost having a terrible reaction is not something you can recover for under the law.
So if your medication needs now are permanent, expensive and life changing - you may have a malpractice claim. Call a NC attorney and ask.
we recommend you file a complaint with the hospital.
I know it doesn't seem fair (clear negligence) but the law is deeply focused on outcome - which as a public policy is likely a good thing.