Dizziness and nausea after catching a cold are caused by external wind and cold, which attack the meridians and cause dizziness and possibly a headache with nausea. You can boil a bowl of ginger soup. After drinking ginger soup, if the body sweats a little, the cold will come out with the sweat and the symptoms will be improved soon. Ginger soup also has the effect of stopping vomiting, which will relieve the symptoms of dizziness and nausea. In addition to drinking ginger soup, try to get enough sleep and try not to stay up late. In terms of diet, try not to eat fatty, thick and greasy meat and other indigestible food, try to vegetables and porridge and other easily digestible food, after 3-5 days of recuperation symptoms will be improved. But be careful not to blow again after sweating, it will lead to aggravation of the disease.