Unlike the common cold, flu symptoms come on suddenly. You will feel achy all over, feverish, often with congestion, sore throat and cough. The second you feel fluish, take one tablespoon of liquid lecithin (available at health-food stores). Lecithin, an extract, typically taken from soybeans or sunflower seeds, boosts the immune system.

Continue to take one tablespoon every eight hours for the next two days— it’ll help you get better.

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