Eucalyptus is anti-viral, anti-bacteria, anti-fungal, anti-aging, and anti-inflammatory! Basically, eucalyptus oil or leaves are rad and readily available. Diffusing them in water at 50/50 kills airborne bacteria (an easy life hack in itself). So when colds are on the raise, I take these simple steps:
1. boil water
2. break up eucalyptus leaves in water (sometimes with rosemary, if I have it)
3. let it steep
4. rub some of the water into the top of my yoga mat before practice
If all of this sounds impractical for your daily life, try the immunity boosting essential oil blend (aka Defender).