Instead of allowing users to reply as if they are legitimate medical practitioners, always reply "Seek a doctor" or something similar to medical questions.

Not only are people asking things that they obviously should be taking immediately to a doctor, "Recently i am getting pain in vagina area. A Culture test of urine showed puss cells in urine. What could be the reason?" and, I can't find it but I saw one the other day where someone asked "My open heart surgery staples are coming out, what should I do" AND, "I had my gallbladder out on friday andam having intense itching and pain in one of the incesions near where the gallbladder was".

There really is no replacement for common sense. This is a huge liability at the moment. What if people told someone to do something ridiculous, but sounded legitimate, like "spread your stitches and pour hydrogen peroxide in there to clear out any infection," or what everyone wants to hear "Just ignore it, it should go away soon enough."

I know when I worked at another answering service they always said "Not medical advice" or "Not a doctor" when answering medical questions, and it seems like Aardvark should do this too, at least to inform people they aren't necessarily getting real medical advice, and to inform those people that they should go to a doctor instead of blindly trusting anonymous people on the internet.