1. It is fit for people to eat foods with high vitamin.2. It's good to eat foods with high protein.Suggested foods as follows:Mushroom: Mushroom contains high high protein, low fat, polysaccharide, multi-amino acids and multivitamin. It can improve the body immunity.Lily: Lily can function to moisten lung to arrest cough, easing mental anxiety.Black fungus: Black fungus contains protein, fat, polysaccharide, calcium, phosphorus, iron.