Usually 3-week-old children can drink dandelion infusion, as follows: 1, 3-week-old children often have internal heat, such as red tongue, yellow tongue, red throat and other symptoms, caused by internal heat, when the application of dandelion infusion can play a good role in relieving; 2, children suffering from acute tonsillitis or acute pharyngitis after the throat will cause obvious redness, swelling, pain, when the application of dandelion infusion can also play a 3, after suffering from mild bacterial infection, there will be fever, cough and other symptoms, you can also apply dandelion infusion treatment, because dandelion has a good anti-bacterial infection effect.