There are a lot of home rememedies you can do. Here are some:
Hot lemonade - 1 lemon, a couple tablespoons of raw unprocessed honey, and boiling hot water. Put honey in last.
Things that are good to eat and drink in whatever fashion when you have a cold, both garlic and honey retain more beneficial properties when not cooked:
garlic - has natural antibiotic properties and boost immune system
raw honey - " "
probiotics - " "
Another remedy we've tried that doesn't taste anywhere near as good as the hot lemonade, but does the trick, is another brew, put all ingredients in a pot and boil, cook for an hour:
2 or 3 garlic cloves - minced or whole
1 onion - whole
lemon - squeeze the juice out and drop the lemon in
Take the pot off the heat, add the raw honey
raw honey - add after everything has boiled an for an hour