Tea made of with any combination of the following; cinnamon, ginger, clove, peppermint, yarrow, elder flower, hyssop, rose hips, or chamomile. You can also try a premade cold teas found at many markets and retail stores.
Adding honey to tea is great however I suggest eating it raw to get the full healing properties. You can use it as a topping for toast.
Lemon and other citrus fruits are also helpful to boost your vitamin C intake, so consume as much as you can.
Broth soups with lots of veggies, sage, basil, and garlic also help to boost the immune system and keep the body hydrated.
Use a warm salt water rise to cleanse the mouth and throat as well as to sooth a sore throat.
Lastly consume a mixture of 1 table spoon baking soda in 4-8 ounces of water. Consume at least 4 servings a few hours apart the first day you feel sick. Then consume 2 servings the second day followed by one serving each day until you are better. A healthy body has an alkaline pH and often when the body is sick it is due to an acidic pH. Baking soda is a natural way to bring the body's pH back to the correct level.