Hi Paul
You should have medical coverage from our OHIP.  You can also apply to have
your drugs covered under the "Trillium plan", It is for low income people.
I used it for some years but can't remember whether it is all covered or
whether you have to pay a small percentage.  Sorry about suffering from the
heat.  Maybe spending part of the day at a mall that is air conditioned
would help.  I live in Ontario too and it is unbearable hot.
Sincerely
Lorrie F

Ah, Paul, I hope the front that is finally bringing us some relief here in
northern Michigan will be helping you ouut some in Ontario as well!

Meanwhile, I'm assuming you know all the basics of cooling off with floor
fans and ice and bringing in what cooler outside nightime air you can (though
I'm often surprised at how many people don't think to get comforters off
their beds in hot weather!).  

Beyond all of that stuff, when we lived in Boston without air conditioning,
we learned to get out of our rooms in the evening.  As much as possible, we'd
go to a nearby bookstore that was air conditioned and sold cool drinks and
didn't mind you sitting in their chairs reading.  We could read their books
or bring our own.  The advantages were twofold: 1) we got cooled off some
ourselves, easing the overall strain on our bodies with a few hours of
relative comfort and 2) because we weren't at home with computer, TV and/or
lights on, we didn't add additional heat to our rooms.  It still wasn't
comfortable, but cooling off some in the evening did help us sleep a bit
better.  (Personally, I'd take a cool shower when we returned.  The DH is a  
person who finds showers wakening experiences so would wait until morning
usually even in the heatwaves.)  I don't know why or how that cooling effect
helped us sleep again in the heat, but it did.  If you can spend your evening
in a/c anywhere (stores, libraries, etc.), do so.