bmagda said:what if I am just on MedEx. Is it worth it financially to go to a doctor?
I have no idea what MedEx is. I'm assuming it is some kind of US health provider in which case you should probably check with them as to whether or not they cover medical care while abroad. If they don't, then your best bet is to buy Argentine health insurance if you're here long term or a travel insurance plan from the US if you're just visiting for a couple of weeks.
Argentine health insurance can be pretty cheap (depending on your age) for a basic plan if you shop around (Medicus did an expat plan if I remember rightly that was around 200 pesos per month) and usually covers all non pre-existing conditions. It also entitles you to a discount on your meds.
If you can't afford insurance here, you can go to a public hospital for emergency treatment as a foreigner. A pharmacist could also probably point you in the right direction (though this might be to a doctor).