Drink a Cup of Hot Tea - Hot tea can help relieve a sore throat. It also can help with head congestion and cough. I really like to add honey to mine when I am sick. A touch of lemon juice can be helpful as well.
Take a Steamy Shower - The steam from a warm shower can help open up both head and chest congestion and relieve sore and achy muscles. Doing this when you are feeling your worst can really help.