There is no fastest way to cure a child’s cold and cough, but there are general treatments such as drinking plenty of warm water and oral medications such as Ambroxol granules. 1. General treatment: Colds are usually self-limiting, and during the period of illness, you need to drink plenty of warm water to promote the body’s metabolism, and eat more fruits and vegetables to replenish vitamins, which is conducive to the recovery of colds. 2. Oral medication: Colds are mostly caused by viral infections, if they are influenza, you can take oseltamivir granules and other antiviral; cough and phlegm can be taken orally to reduce phlegm and stop coughing. Due to the different physical condition of the child, the condition of different factors, cold recovery time also varies from person to person, there is no so-called fastest way to cure. The existence of colds should be under the guidance of the doctor comprehensive treatment.