For nausea and to fight colds:
fresh lemon juice
freshly pressed ginger
honey
hot water
Mix all to your taste preferences and then add boiling water. It's so comforting and has great healing properties!
I work in the medical field, and for stomach illnesses the docs recommend something called the BRATT diet: bananas, rice, applesauce, tea, toast, all things that are pretty easy on the stomach. I've heard yogurt can be good for building back up that good gut flora, especially if a person has been on antibiotics.
Potassium is also found in potatoes! Actually, I think even more than in bananas
And... a homemade bug spray recipe, but it is stinky!
2 cups packed catnip
1 cup apple cider vinegar
Puree. Let set in closed container for 2 weeks. Strain (most of the green stays in) into spray bottle. May add essential oils for a bit better smell (I used eucalyptus). Spray liberally!