Boost your immune system:

1 fresh lemon, squeezed:
gives you fresh breath, acts as an immunity booster, improves skin and helps with digestion

1-inch fresh ginger root:
detoxifies, helps with digestion,
1 cup of boiling water

leave to steep for 3 mins or until cool enough to sip.

optional: honey or other sweeteners of your choice
optional II: 1 shot good quality whiskey  (nothing that would give you headaches)

enjoy!