I have a cold, so I should have a little fever. If you don't want to see a doctor, start drinking more warm water now, eat light food, avoid greasy and dry frying, and eat less seafood; Take a bath with hot water; Avoid entering and leaving air-conditioned rooms, do not blow electric fans, do not exercise too vigorously, and exercise moderately; Adequate rest time ... as long as it's not a bad cold or high fever, you can naturally recuperate in 5 or 6 days by doing the above.