Pretty much only paracetemol if you have aches an pains. If you are all stuffed up, you can use one of those nasal inhalers- I don't know if avaialable in canada- vicks make them, they are not a spray, it's just vicks vapor rub in a lipstick shaped tube, and you smell it- it clears your nose. Failing that, just buy the actual rub, and put some on a hanky to sniff.
Eucalyptus oil on a hanky will do the same. There should be some safe lozenges for sore throats too- if you can't find any, my mum used to give us a spoonfull of honey for a sore throat when we were kids, it seemed to help- shortlived though!!! For earache she'd put warm olive oil on some cotton wool and put it in our ears- the heat would give some relief.
Just drink plnty of fluids, and get lots of rest.