If you are a granduate student, green shield can cover 80% of your medicine costs.
If you don't get fever (I mean you just got heavy cold), you don't need to go to clinic because they don't give you prescription medicine such as antibiotic. They may suggest that what you can do be drink a lot of water and have a rest. That's it!
Another thing is that you may have to wait for a long long time to see a doctor if you go to the clinic.