As the resistance of patients with severe cold is lowered during the period of cold and flu, and the function of spleen and stomach of patients is also reduced, dietary precautions should be taken, such as eating a light diet, avoiding spicy or cold food, and consuming enough nutrition. 1. As the digestive function of patients with severe cold is weakened, they need to have a light diet with easy-to-digest food such as porridge, pasta, rice soup, and so on. 2. Attention should be paid to minimize the consumption of spicy, cold or stimulating foods such as ice cream, barbecue, etc. to avoid inducing gastrointestinal discomfort. 3. As the immunity and resistance of patients with severe colds are reduced, patients should eat more vegetables and fruits, milk, etc. to increase nutrition and improve the immunity of the body, so as to promote the cure of colds.