You may try to boost your immune system by eating lots of veggies and fruits high in vitamin C like oranges. It may be delicious, but it may not be enough. Here is an ancient recipe that will boost your immune system when taken with black seed oil will almost cure anything swine flue was cured by black seed found in the tomb of king Tutankhamun along side with apple cider vinegar and through out generation saffron was added since it is anti depressant and is aphrodisiac to mask the garlic smell and additional medicinal value