I'm NO Doctor but I am an experienced mother of 9 children and I have come to the conclusion that if you stay dry, and warm, and wear shoes on your feet you stay much healthier.
If you do go out and get wet come in and dry off.
If you're chilled get warmed up (stand in front of a fire, drink something hot, take a hot bath).
Cough medicine anyone?
Sucking on cough / throat drops, hard candy works well but if you run out in the middle of the night and need something then you can
take a soup spoon of sugar and add a few drops of lemon juice to it and melt it over the stove, it helps to soothe the throat and settle the cough for a while anyway.
To keep those germs that will make you sick at bay, use this easy and inexpensive disinfectant for your home and kitchen:
1 oz. of ammonia to 15 oz. water in a spray bottle will disinfect your hard surfaces and is very inexpensive.