Once I know I’m sick, I rest as much as I possibly can. I clear my social schedule, work as little as possible, and shelve any projects (even mental ones) that can wait. My diet becomes very clean. No coffee, alcohol, sugar, junk, and I drink a ton of water. Also, I eat a lot of small meals all day long. Your body needs nutrients when it’s sick but doesn’t want the energy burden of digesting large meals.