A 70-day-old baby with a cold and cough can be treated at home with dietary therapy if the symptoms are not severe. First of all, you have to distinguish whether your child has a wind-cold cough or a wind-heat cough. Different types of cough are different in terms of treatment, medication and dietary therapy, so you must distinguish them. If the cough is wind-cold, the child’s tongue will be white. If it is a wind-heat cough, the child’s tongue will be yellow-red. For wind-cold cough, garlic water is usually very effective. Use 2-3 cloves of garlic, put it in a bowl, add a grain of rock sugar and half a small bowl of water, cover it with a pot and boil it, then steam it over low heat for 15 minutes. Garlic is warm in the spleen, stomach and lung meridians and is very effective for wind-cold coughs and kidney coughs. If the cough is wind-heat, the most effective way is to use rock sugar and snow pear water, crush mother of pearl and put it into the pear, put 2-3 pieces of rock sugar, steam it for 30 minutes, eat the pear and drink the soup. Keep an eye on your child’s body temperature to prevent fever.