Fever is a common clinical symptom. When you have a cold and fever, you can choose different fever-reducing medications according to the degree of fever, and of course, you can also choose physical cooling. First of all, patients with fever should drink plenty of hot water to replenish a lot of water and facilitate the discharge of toxins. The human body loses a lot of water and salt while sweating to dissipate heat, so it is necessary to replenish enough water when you have a fever, preferably by adding the right amount of salt to the water. Secondly, you can also consume foods containing protein to replenish protein in time, such as yogurt and milk. Furthermore, patients with cold and fever should try to choose easily digestible food in the main diet, such as millet porridge, etc. People with wind-cold type can eat more sweat-dispersing foods such as chili, onion, ginger, garlic, etc.; wind-heat type should eat more foods that help disperse wind-heat and clear heat, such as mung beans, radish, cabbage, pear, etc. In addition, you should also eat more vitamin-rich fruits and green vegetables; you can drink chicken soup, because chicken soup contains a variety of amino acids required by the human body, which can effectively enhance the body’s ability to resist a cold and fever. You should not drink tea when you have a cold and fever because drinking strong tea will keep the brain excited, and make the pulse speed up and blood pressure rise, which in turn will make the patient’s body temperature rise and irritability. At the same time, tea water will affect the decomposition and absorption of drugs, reducing the efficacy of drugs. If the body temperature exceeds 38.5 ℃, you can take some oral antipyretic drugs, such as acetaminophen or ibuprofen. The specific dosage of medication should be combined with clinical, under the guidance of physicians. All in all, when you have a fever, you should eat lightly, drink more water, and avoid spicy and cold food. You should also pay more attention to keep warm, moisturize, and strengthen your body to improve your immunity.