Mother earth is perfect! For every sickness nature provide the cure. Usually the shape and color of the food will give you a hint of what it is good for, example a walnut pit look like the brain and in fact it is good for the brain, a tomato look like the heart and it is good for the heart.
Garlic is a natural antibiotic, Cayenne pepper is full of vitamin C Honey another natural antibiotic:
Here is a recipe for cold, flu like symptoms:
4 cloves of chopped garlic
1 coffee spoon of cayenne pepper
1 soup spoon of honey
Mix it all up and take 1 coffee spoon every 15mn for a full day.
I recommend that you chase it with some chamomile tea (anti inflammatory caffeine free )